게시 됨 업데이트 됨python - plotly한 시간안에 읽기 (약 13435 단어)

Newbie as a data scientist in East Asia! (kaggle Competition)

Newbie as a data scientist in East Asia!

inotebookIMG
notebook

Hello, Kaggers! Nice to meet you!

We are a team in East Asia that wants to be data scientists

As newbies, we want to know what and/or how Kaggler is!

so, let’s have a time to learn about Kaggle as a senior with us from now.

If you want to support us (or feel qute) , I ask for a comment! (PLZ) ^0^

And !! Since we are not native English speakers, please ask questions if there is a context that you don’t understand because it’s not smooth.

I’ll do my best to answer.

1 Introduction

  1. what is the Kaggle
    a subsidiary of Google LLC, is an online community of data scientists and machine learning practitioners.

If we use kaggle, we can take the following advantages.

1) to find and publish data sets
2) to explore and build models in a web-based data-science environment
3) to work with other data scientists and machine learning engineers
4) to enter competitions to solve data science challenges

so, As data scientist beginners, we try to participate in the Kaggle competition.

  1. 21 Kaggle Machine Learning and Data Science Survey
  • The most comprehensive dataset available for ML and data science status

This is the theme of the competition we will participate in this time.

To become a data scientist, we compared what kind of job Kagglers has, how much experience he has, and how much money he earns by dividing into the world and East Asia.

In addition, there are detailed comparisons in East Asia, and ultimately, we will to find out what data the Kaggle competition data shows.

The 2021 survey, like 2017, 2018, 2019, and 2020, launched an industry-wide survey that comprehensively presents the current status of data science and machine learning.

The survey was conducted from 09/01/2021 to 10/04/2021, and after cleaning the data, Kaggle received 25,973 responses!

This year, Kaggle will award $30,000 in prize money to winner in this competition.

we want to receive $30,000 for winning the competition, but we just hope it will help us become a data scientist because it is difficult for a rookie.

Ref.

[1] Kgg_competitions

[2] Kgg_definition

[3] kaggle-survey-2021

1.2 Contents

Introduction
Contents
Summary
Data Import and Preprocessing
Plots and Description

Kaggle's transformation. (World/East_Asia)
    1 user transformation
    2 Gender transformation
    3 Job transformation
    4 Age  transformation
    5 Degree transformation
    6 Experience transformation
    7 Salary transformation
    8 Language transformation

Position of Data Scientist in East Asia
    1 Salary
    2 Salary-Experience
    3 Degree
    4 Salary-Degree
    5 Language

Discussion
Close

1.3 Summary

used data

We used all the data for five years. (2017~2021)

used Language and Library

  • Numpy
  • Metplotlib
  • seaborn
  • Plotly
    • plotly.express : An interface where you can draw a graph easily and quickly.
    • plotly.graph_objects : You can customize it in the way you want because you can do more detailed work than express.
    • plotly.figure_factory : Used before express existed and remains in the module for compatibility with previous versions
    • plotly.subplots : A module that displays multiple graphs in one figure.
    • plotly.offline : Save locally and create HTML that opens in a web browser and make it standalone

Grouping data sections

  • East Asia and World
    • East Asia : [‘China’,’Taiwan’, ‘South Korea’, ‘Japan’]
    • World : all data
  • Gender
    • [Male, Female, Others]
  • Job
    • Data_Analyst =[‘Data Analyst’,’Data Miner,Information technology’,’Data Miner’,
        'Predictive Modeler','Information technology, networking, or system administration', 
  'A business discipline (accounting, economics, finance, etc.)', 'Business Analyst', Humanities', 'Statistician', 'Mathematics or statistics', 'Medical or life sciences (biology, chemistry, medicine, etc.)', Physics or astronomy',  'Social sciences (anthropology, psychology, sociology, etc.)', 'Environmental science or geology', 'Humanities (history, literature, philosophy, etc.)']
    • Data_Scientist =[‘Data Scientist’, ‘Research Scientist’, ‘Researcher’,’Machine Learning Engineer’, ‘Scientist/Researcher’]
    • Developer=[‘Developer Relations/Advocacy’,’Data Engineer’,’Engineer’,’Engineering (non-computer focused)’,
      ‘Programmer’,’Software Engineer’, ‘Computer Scientist’,’Computer science (software engineering, etc.)’, ‘Fine arts or performing arts’,’Product Manager’, ‘Software Developer/Software Engineer’, ‘Product/Project Manager’,’Program/Project Manager’,’DBA/Database Engineer’]
    • Not_Employed =[‘Currently not employed’, ‘Not employed’, ‘Student’]
    • Others = [‘I never declared a major’, ‘Other’]
  • Age
    • [18-21, 20s, 30s, 40s, 50s, 60s<]
  • Degree
    • [‘college’, ‘Bachelor’s degree’,’Master’s degree’, ‘Doctoral degree‘, ‘etc’]
  • Experience
    • [<1, 1-3, 3-5, 5-10, 10+]
  • Salary
    • [<999, 1,000-20,000, 20,000-59,999, 60,000-99,999, 100,000-199,999, 200,000~]

All

East_Asia_Data_Scientist

2. data Import and pre-treatments

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import numpy as np
import pandas as pd
import seaborn as sns
import matplotlib.pylab as plt

import plotly.io as pio
import plotly.express as px
import plotly.graph_objects as go
import plotly.figure_factory as ff
from plotly.subplots import make_subplots
from plotly.offline import init_notebook_mode, iplot
init_notebook_mode(connected=True)
pio.templates.default = "none"

import os
for dirname, _, filenames in os.walk('/kaggle/input'):
    for filename in filenames:
        print(os.path.join(dirname, filename))
import warnings
warnings.filterwarnings("ignore")
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df17= pd.read_csv("/kaggle/input/kaggle-survey-2017/multipleChoiceResponses.csv", encoding="ISO-8859-1")
df18= pd.read_csv("/kaggle/input/kaggle-survey-2018/multipleChoiceResponses.csv", )
df19= pd.read_csv("/kaggle/input/kaggle-survey-2019/multiple_choice_responses.csv", )
df20= pd.read_csv("/kaggle/input/kaggle-survey-2020/kaggle_survey_2020_responses.csv", )
df21= pd.read_csv("/kaggle/input/kaggle-survey-2021/kaggle_survey_2021_responses.csv", )

3. plots and description

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#질문 제거하기, replace
df17= df17.iloc[1:, :].replace("People 's Republic of China",'China')
df18= df18.iloc[1:, :].replace('Republic of Korea','South Korea')
df19= df19.iloc[1:, :].replace('Republic of Korea','South Korea')
df20= df20.iloc[1:, :].replace('Republic of Korea','South Korea')
df21= df21.iloc[1:, :]

## East Asia에는 대한민국, 일본, 중국, 타이완, 몽골, 북조선 총 6개의 국가가 속해 있다. 
## 이유는 알 수 없지만, 18년도엔 타이완이 없다. 
EastAsia17 = ['China',"People 's Republic of China", 'Taiwan', 'South Korea', 'Japan']
EastAsia18= ['China', 'South Korea', 'Japan', 'Republic of Korea'] 
EastAsia19 = ['China','Taiwan', 'South Korea', 'Japan', 'Republic of Korea']
EastAsia20 = ['China','Taiwan', 'South Korea','Republic of Korea', 'Japan']
EastAsia21 = ['China','Taiwan', 'South Korea', 'Japan']
EastAsia = ['Republic of Korea','China','Taiwan', 'South Korea', 'Japan', "People 's Republic of China" ]

df21_Ea = df21[df21['Q3'].isin(EastAsia)]
df21_Wo = df21[~df21['Q3'].isin(EastAsia)]
df21['region']=["EastAsia" if x in EastAsia else "World" for x in df21['Q3']]

df20_Ea = df20[df20['Q3'].isin(EastAsia)]
df20_Wo = df20[~df20['Q3'].isin(EastAsia)]
df20['region']=["EastAsia" if x in EastAsia else "World" for x in df20['Q3']]

df19_Ea = df19[df19['Q3'].isin(EastAsia)]
df19_Wo = df19[~df19['Q3'].isin(EastAsia)]
df19['region']=["EastAsia" if x in EastAsia else "World" for x in df19['Q3']]

df18_Ea = df18[df18['Q3'].isin(EastAsia)]
df18_Wo = df18[~df18['Q3'].isin(EastAsia)]
df18['region']=["EastAsia" if x in EastAsia else "World" for x in df18['Q3']]

df17_Ea = df17[df17['Country'].isin(EastAsia)]
df17_Wo = df17[~df17['Country'].isin(EastAsia)]
df17['region']=["EastAsia" if x in EastAsia else "World" for x in df17['Country']]

df21['year'] = '2021'
df20['year'] = '2020'
df19['year'] = '2019'
df18['year'] = '2018'
df17['year'] = '2017'

years = ['2017', '2018', '2019', '2020', '2021']

df21_Ea = df21[df21['Q3'].isin(EastAsia21)]
Ea21= (
    df21_Ea['Q3'].value_counts().to_frame()
    .reset_index().rename(columns={'index':'Country', 'Q3':'21'}))

df20_Ea=df20[df20['Q3'].isin(EastAsia)]
Ea20= (
    df20_Ea['Q3'].replace('Republic of Korea','South Korea')
    .value_counts().to_frame().reset_index()
    .rename(columns={'index':'Country', 'Q3':'20'}))

df19_Ea=df19[df19['Q3'].isin(EastAsia)]
Ea19= (df19_Ea['Q3'].replace('Republic of Korea','South Korea')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Q3':'19'}))

df18_Ea=df18[df18['Q3'].isin(EastAsia)]
Ea18= (df18_Ea['Q3'].replace('Republic of Korea','South Korea')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Q3':'18'}))
Ea18.value_counts()
#df18 열에 taiwan = 0을 추가 해야 합니다. 

df17_Ea = df17[df17['Country'].isin(EastAsia)]
Ea17= (df17_Ea['Country'].replace("People 's Republic of China",'China')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Country':'17'}))

#data를 합쳐서 하나의 dataframe으로 만들어 줌.
df5years = pd.merge(Ea17, Ea18, on='Country', how='outer')
df5year =pd.merge(Ea19,Ea20, on='Country', how='outer')
df5year=pd.merge(df5year, Ea21, on='Country', how='outer')

df5years = pd.merge(df5years, df5year, on='Country', how='outer')

Ea21 = len(df21_Ea)
Wo21 = len(df21) - len(df21_Ea)

Ea20 = len(df20_Ea)
Wo20 = len(df20) - len(df20_Ea)

Ea19 = len(df19_Ea)
Wo19 = len(df19) - len(df19_Ea)

Ea18 = len(df18_Ea)
Wo18 = len(df18) -  len(df18_Ea)

Ea17 = len(df17_Ea)
Wo17 = len(df17) - len(df17_Ea)

years = ['2017','2018','2019','2020', '2021']

def percent (a, b):
    result =a/(a+b)*100
    result = np.round(result, 2)
    return result

def percentR (b, a):
    result =a/(a+b)*100
    result = np.round(result, 2)
    return result

percent = [percent(Ea17, Wo17), percent(Ea18, Wo18), percent(Ea19, Wo19), 
                                                 percent(Ea20, Wo20), percent(Ea21, Wo21)]

3.1 Kaggle’s transformation (World/East Asia)

3.1.1 user transformation

Number of respondents

(bar, scatter plot : number of respondents to World and East Asia,
Map plot : number of respondents to East Asia)

World and East Asia: The same trend.

East Asia: 15% of the total continent and 20.3% of the population (16/78.7: Ea/Wo)

2018 Issue: Significant increase in respondents->Hypothesis: Due to the rapid increase in China.

2018 Outliers Considering: 2022 Kaggle survey Respondents: Increased in both World and East Asia

I wish our team the honor of becoming a respondent to the Kaggle survey in 2022….

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fig = go.Figure()
y=[len(df17_Ea),len(df18_Ea), len(df19_Ea),len(df20_Ea),len(df21_Ea)]

fig.add_trace(go.Bar(x=years, y=y,
                base=0,
                marker_color='#F2D64B',
                yaxis = "y1",
                name='East Asia',
                text= percent,
                texttemplate='%{text}  %', 
                textposition='outside',
                hovertemplate='<b>KaggleUser</b>: %{x}<br>'+ '<b>Count</b>: %{y}'))

fig.add_trace(go.Scatter(name = "World",
           x=years, 
           y=[len(df17), len(df18), len(df19), len(df20), len(df21)],
           marker_color='#979DA6',
           mode = 'lines+markers', # please check option here
           yaxis = "y2"))

fig.update_traces(hovertemplate='<b>Count</b>: %{y}<br><extra></extra>'+
                                '<b>Year</b>: %{x}<br>')

fig.update_layout(yaxis  = dict(title = "Kaggle User in East Asia",showgrid = False, range=[0, len(df21_Ea)*1.2]),
                  yaxis2 = dict(title = "Kaggle User in World", overlaying = "y1", side = "right", 
                  showgrid = False, 
                  zeroline = False, range=[0, len(df21)*1.2]))

fig.update_layout(title='<b>Kaggle Users</b>',title_font_size=20,
                  margin = dict(t=200, l=100, r=50, b=200),
                  height=700, width=700)

fig.update_layout(legend=dict(
    orientation="h",
    yanchor="bottom",
    y=1.1,
    xanchor="right",
    x=1))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.9,
                                    y=-0.25,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()


def world_map(locations,counts,title):
    data = [ dict(
            type = 'choropleth',
            locations = locations,
            z = counts,
            colorscale = 'Reds',
            locationmode = 'country names',
            autocolorscale = False,
            reversescale = False,
            marker = dict(
                line = dict(color = '#F7F7F7', width = 1.5)),
                colorbar = dict(autotick = True, legth = 3, len=0.75, title = 'respodents',
                               max = 1000, min = 0))]
    layout = dict(
        title=title,
        titlefont={'size': 28},
        width=700, 
        height=600,
        paper_bgcolor='#FFFFFF', 
        margin=dict(l=50, r=50, t=100, b=100),
        geo = dict(
            showframe = True,
            showcoastlines = True,
            fitbounds="locations"))
   
    fig = dict(data=data, layout=layout)
    iplot(fig, validate=False, filename='world-map')

z = df21_Ea['Q3'].value_counts()
 
world_map(locations=z.index, counts=z.values, title= '<b>EastAsia Countries<b>')

18’ :

User change between United States and India.

China’s markedly increase in 2018

  • There is no Taiwan, but only China has increased. : East Asian political situation Issue can be suspected.
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A18 = (
    df18['Q3']
    .replace({'Republic of Korea':'South Korea',
             'I do not wish to disclose my location' : 'Other'})
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Q3':'2018'})
    .groupby('type')
    .sum()
    .reset_index()
)

A19 = (
    df19['Q3']
    .replace('Republic of Korea','South Korea')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Q3':'2019'})
    .groupby('type')
    .sum()
    .reset_index()
)

A17 = (
    df17['Country']
    .replace({'United States': 'United States of America',
              'Hong Kong': 'Hong Kong (S.A.R.)', 
              'United Kingdom':'United Kingdom of Great Britain and Northern Ireland',
             })
    .replace("People 's Republic of China",'China')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Country':'2017'})
    .groupby('type')
    .sum()
    .reset_index()
)

A18A19=pd.merge(A18,A19, how='outer',on='type').fillna(0)
A18A17=pd.merge(A18,A17, how='outer',on='type').fillna(0)
A18A19['minus']= A18A19['2018']-A18A19['2019']
A18A17['minus']= A18A17['2018']-A18A17['2017']

A18A17=A18A17.sort_values(by="minus", ascending=False)
A18A19=A18A19.sort_values(by="minus", ascending=False)


fig = go.Figure(data=[  
        go.Bar(x =A18A19['type'],
        y = A18A19['minus'],
        marker_color='#979DA6',
        name = '2018-2019', base=0),
        go.Bar(x =A18A17['type'],
        y = A18A17['minus'],
               marker_color='#F2D64B',
        name = '2018-2017', base=0)
        ])

fig.update_layout(title='<b>        Predicting outliers (2018)</b>',title_font_size=20,
                  margin = dict(t=200, l=100, r=10, b=200),
                  height=700, width=700,
                  xaxis_title=None,
                  yaxis_title=None)
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)

fig.update_layout(legend=dict(
    orientation="h",
    yanchor="bottom",
    y=1.1,
    xanchor="right",
    x=1))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.5,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

Total population:

1.4 billion (85%) in China, 130 million in Japan, 0.5 billion in Korea, and 0.2 billion in Taiwan.

  • China: The number of respondents is smaller than the population.
  • Japan: Starting in 2019, overtaking China
  • Taiwan : 2018 data 0 =? Diplomatic issues? The growth trend is weak.
  • Korea : Respondents at a similar level to Japan’s population.
  • East Asia: The number of respondents will increase further.
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#data preprocessing
total17 = ( 
    df17['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total18 = (
    df18['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total19 = (
    df19['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total20 = (
    df20['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total21 = (
    df21['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)

#graph
colors = ['#F2D64B','#979DA6']

fig = make_subplots(rows=1, cols=5, specs=[[{'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}]],
                   subplot_titles=("2017", "2018", "2019", "2020", "2021"))
fig.add_trace(go.Pie(marker=dict(colors=colors),labels=total21['type'], values=total21['respodents'], name="2021", scalegroup='one'), 1, 5)
fig.add_trace(go.Pie(marker=dict(colors=colors),labels=total20['type'], values=total20['respodents'], name="2020", scalegroup='one'), 1, 4)
fig.add_trace(go.Pie(marker=dict(colors=colors),labels=total19['type'], values=total19['respodents'], name="2019", scalegroup='one'), 1, 3)
fig.add_trace(go.Pie(marker=dict(colors=colors),labels=total18['type'], values=total18['respodents'], name="2018", scalegroup='one'), 1, 2)
fig.add_trace(go.Pie(marker=dict(colors=colors),labels=total17['type'], values=total17['respodents'], name="2017", scalegroup='one'), 1, 1)

fig.update_traces(hole=.0, hoverinfo="label+percent+name", textposition='inside', textinfo='percent+label',
                  textfont_size=12)

fig.update_layout(title='<b>World vs EastAsia</b>',title_font_size=23,
                  margin = dict(t=300, l=0, r=0, b=200),
                  height=700, width=700)

fig.update_layout(legend=dict(
    orientation="h",
    yanchor="bottom",
    y=1.3,
    xanchor="right",
    x=1))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.25,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()
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fig = go.Figure(data=[
    go.Bar(name='2017', x=df5years['Country'], y=df5years['17'], marker_color='#F2798F',text=df5years['17'].tolist(), textposition='outside'),
    go.Bar(name='2018', x=df5years['Country'], y=df5years['18'], marker_color='#88BFBA',text=df5years['18'].fillna(0).astype(int).tolist(), textposition='outside',),
    go.Bar(name='2019', x=df5years['Country'], y=df5years['19'], marker_color='#CDD9A3',text=df5years['19'].tolist(), textposition='outside'),
    go.Bar(name='2020', x=df5years['Country'], y=df5years['20'], marker_color='#F28705',text=df5years['20'].tolist(), textposition='outside',),
    go.Bar(name='2021', x=df5years['Country'], y=df5years['21'], marker_color='#D9946C',text=df5years['21'].tolist(), textposition='outside')])

fig.update_layout(barmode='group')

fig.update_layout(title='<b>Kaggle User in East Asia</b>',title_font_size=23,
                  margin = dict(t=200, l=100, r=10, b=200),
                  height=600, width=700)
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.update_traces(hovertemplate='<b>Count</b>: %{y}')
fig.update_layout(legend=dict(
    orientation="v",
    yanchor="bottom",
    y=1.15,
    xanchor="right",
    x=1))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.5,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

3.1.2 Gender transformation

World: The proportion of female respondents increases (still below 20%)

The number of respondents is increasing in all genders.

Our team is also a team with high female members and wants to contribute as a respondent in 2022.

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#data preprocessing
Gender_17 = (
    df17['GenderSelect']
    .replace(['A different identity', 'Prefer to self-describe', 'Non-binary, genderqueer, or gender non-conforming'], 'Others')
    .fillna('Others')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'GenderSelect':'Gender'})
    .groupby('type')
    .sum()
    .reset_index())
Gender_18 = (
    df18['Q1']
    .replace(['Prefer not to say', 'Prefer to self-describe'], 'Others')
    .fillna('Others')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Q1':'Gender'})
    .groupby('type')
    .sum()
    .reset_index())
Gender_19 = (
    df19['Q2']
    .replace(['Prefer not to say','Prefer to self-describe'],'Others')
    .fillna('Others')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Q2':'Gender'})
    .groupby('type')
    .sum()
    .reset_index())
Gender_20 = (
    df20['Q2']
    .replace(['Prefer not to say', 'Prefer to self-describe', 'Nonbinary'], 'Others')
    .replace(['Man', 'Woman'], ['Male', 'Female'])
    .fillna('Others')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Q2':'Gender'})
    .groupby('type')
    .sum()
    .reset_index())
Gender_21 = (
    df21['Q2']
    .replace(['Prefer not to say', 'Prefer to self-describe', 'Nonbinary'], 'Others')
    .replace(['Man', 'Woman'], ['Male', 'Female'])
    .fillna('Others')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Q2':'Gender'})
    .groupby('type')
    .sum()
    .reset_index())

colors = ['#D9946C','#88BFBA', '#CDD9A3']

fig = make_subplots(rows=1, cols=5, specs=[[{'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}]],)
fig.add_trace(go.Pie(marker=dict(colors=colors), labels=Gender_21['type'], values=Gender_21['Gender'], name="2021", scalegroup='one', text=np.array(Gender_21['Gender'].sum()), title="2021", titleposition='bottom center'),
              1, 5)
fig.add_trace(go.Pie(marker=dict(colors=colors), labels=Gender_20['type'], values=Gender_20['Gender'], name="2020", scalegroup='one', text=np.array(Gender_20['Gender'].sum()), title="2020", titleposition='bottom center'),
              1, 4)
fig.add_trace(go.Pie(marker=dict(colors=colors), labels=Gender_19['type'], values=Gender_19['Gender'], name="2019", scalegroup='one', text=np.array(Gender_19['Gender'].sum()), title="2019", titleposition='bottom center'),
              1, 3)
fig.add_trace(go.Pie(marker=dict(colors=colors), labels=Gender_18['type'], values=Gender_18['Gender'], name="2018", scalegroup='one', text=np.array(Gender_18['Gender'].sum()), title="2018", titleposition='bottom center'),
              1, 2)
fig.add_trace(go.Pie(marker=dict(colors=colors), labels=Gender_17['type'], values=Gender_17['Gender'], name="2017", scalegroup='one', text=np.array(Gender_17['Gender'].sum()), title="2017", titleposition='bottom center'),
              1, 1)

fig.update_traces(hole=.0, hoverinfo="label+percent+name", 
                  textinfo='label+percent+value')

fig.update_layout(title='<b>World Gender</b>',title_font_size=23,
                  margin = dict(t=300, l=100, r=0, b=200),
                  height=700, width=1000)

fig.update_layout(legend=dict(
    orientation="v",
    yanchor="bottom",
    y=1.3,
    xanchor="right",
    x=1))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.85,
                                    y=-0.5,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

- Male (1004->2037 : 2017->2021) double increase

- Female 183->327 : 2017->2021 increased 1.8 times

- Others (8->64 : 2017->2021) 8x increase

[Compare the high and low points]

  • It can be seen that the number of female respondents and the ratio of male respondents hardly change, which is a difference compared to World data.

  • It can be seen that the degree of gender freedom in East Asia has increased relatively.

  • Compared to World data, it can be seen that in 2021 (1.87: 2.6= Wo: Ea), compared to 2017 (1.96: 0.7 = Ea), which was relatively conservative.

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#data preprocessing
gender21= df21_Ea.loc[:, ['Q3', 'Q2', 'year']].rename(columns={'Q3':'Country', 'Q2':'Gender'})
gender20= df20_Ea.loc[:, ['Q3', 'Q2', 'year']].rename(columns={'Q3':'Country', 'Q2':'Gender'})
gender19= df19_Ea.loc[:, ['Q3', 'Q2', 'year']].rename(columns={'Q3':'Country', 'Q2':'Gender'})
gender18= df18_Ea.loc[:, ['Q3', 'Q1', 'year']].rename(columns={'Q3':'Country', 'Q1':'Gender'})
gender17= df17_Ea.loc[:, ['Country', 'GenderSelect', 'year']].rename(columns={'index':'type', 'GenderSelect':'Gender'})

Gender5y= pd.concat([gender17, gender18, gender19, gender20, gender21])
Gender5y= (Gender5y.replace(['Prefer not to say', 'Prefer to self-describe', 'Nonbinary', 'A different identity'], 'Others')
           .replace(['Man', 'Woman'], ['Male', 'Female'])
           .groupby(['year', 'Gender'])
           .size()
           .reset_index()
           .rename(columns = {0:"Count"}))

gen17_5y = Gender5y[Gender5y['year'] == "2017"].reset_index(drop = True)
gen18_5y = Gender5y[Gender5y['year'] == "2018"].reset_index(drop = True)
gen19_5y = Gender5y[Gender5y['year'] == "2019"].reset_index(drop = True)
gen20_5y = Gender5y[Gender5y['year'] == "2020"].reset_index(drop = True)
gen21_5y = Gender5y[Gender5y['year'] == "2021"].reset_index(drop = True)

Gen5y_ = pd.concat([gen17_5y, gen18_5y, gen19_5y, gen20_5y, gen21_5y], ignore_index = True)
Gen5y_= pd.pivot(Gen5y_, index = "year", columns = "Gender", values = "Count").reset_index()
Gen5y_

Gen5y_['year'].unique()

#graph
fig = go.Figure()

fig.add_trace(go.Bar(
    x = Gen5y_['year'],
    y = Gen5y_['Male'].tolist(),
    name = 'Male',
marker_color='#88BFBA', text=Gen5y_['Male'].tolist(), textposition='outside'))

fig.add_trace(go.Bar(
    x = Gen5y_['year'],
    y = Gen5y_['Female'].tolist(),
    name = 'Female',
marker_color='#D9946C', text=Gen5y_['Female'].tolist(), textposition='outside'))

fig.add_trace(go.Bar(
    x = Gen5y_['year'],
    y = Gen5y_['Others'].tolist(),
    name = 'Others',
marker_color='#CDD9A3', text=Gen5y_['Others'].tolist(), textposition='outside'))

fig.update_layout(barmode="group") 

fig.update_layout(title='<b>Gender by year</b>',title_font_size=22,
                  margin = dict(t=200, l=100, r=10, b=200),
                  height=700, width=700,
                  xaxis_title=None,
                  yaxis_title=None)
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.5,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

3.1.3 Job transformation

21' World Vs East Asia Age Ratio: Bar plot

  • Not Employed : More than 30% in both East Asia and the world, the highest.

    Because “Students” is included.

  • Data Scientist : High percentage in the world and East Asia.

  • Relatively low proportion in East Asia.
    = Absolute lack of numbers

We would like to move forward by selecting a **data scientist** with insufficient numbers in East Asia. 

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#data preprocessing
Data_Analyst =['Data Analyst','Data Miner,Information technology','Data Miner',
                'Predictive Modeler','Information technology, networking, or system administration', 
                'A business discipline (accounting, economics, finance, etc.)', 'Business Analyst', 'Humanities',
                'Statistician', 'Mathematics or statistics', 'Medical or life sciences (biology, chemistry, medicine, etc.)', 
                'Physics or astronomy',  'Social sciences (anthropology, psychology, sociology, etc.)', 'Environmental science or geology',
                'Humanities (history, literature, philosophy, etc.)']
Data_Scientist =['Data Scientist',  'Research Scientist', 'Researcher',
                'Machine Learning Engineer', 'Scientist/Researcher']
Developer=['Developer Relations/Advocacy','Data Engineer','Engineer','Engineering (non-computer focused)',
           'Programmer','Software Engineer', 'Computer Scientist','Computer science (software engineering, etc.)', 
           'Fine arts or performing arts','Product Manager', 'Software Developer/Software Engineer',
           'Product/Project Manager','Program/Project Manager','DBA/Database Engineer']
Not_Employed =['Currently not employed', 'Not employed', 'Student']
Others = ['I never declared a major', 'Other']


df21job_Ea = df21_Ea.loc[:,['Q3','Q5']].rename(columns={'Q5':'2021'}).fillna('Other')
df20job_Ea = df20_Ea.loc[:,['Q3','Q5']].rename(columns={'Q5':'2020'}).fillna('Other')
df19job_Ea = df19_Ea.loc[:,['Q3','Q5']].rename(columns={'Q5':'2019'}).fillna('Other')
df18job_Ea = df18_Ea.loc[:,['Q3','Q5']].rename(columns={ 'Q5':'2018'}).fillna('Other')
df17job_Ea = df17_Ea.loc[:,['Country','CurrentJobTitleSelect']].rename(columns={'CurrentJobTitleSelect':'2017'}).fillna('Other')

df21job_Ea.value_counts('2021')
df21job_Ea['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist # Data Scientist
                   else "Developer" if x in Developer
                    else "NotEmployed" if x in Not_Employed
                   else "Others" 
                   for x in df21job_Ea['2021']]
df21job_Ea.value_counts('JOB')

df20job_Ea.value_counts('2020')
df20job_Ea['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Developer" if x in Developer
                    else "NotEmployed" if x in Not_Employed
                   else "Other"
                   for x in df20job_Ea['2020']]
df20job_Ea[['2020','JOB']]

df19job_Ea.value_counts('2019')
df19job_Ea['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Developer" if x in Developer
                    else "NotEmployed" if x in Not_Employed
                    else "Other"
                   for x in df19job_Ea['2019']]

df19jobTest = df19job_Ea.loc[df19job_Ea.JOB == 'Other']
df19jobTest['2019'].value_counts()


df18job_Ea.value_counts('2018')
df18job_Ea['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Developer" if x in Developer
                    else "NotEmployed" if x in Not_Employed
                    else "Other"
                   for x in df18job_Ea['2018']]

df18jobTest = df18job_Ea.loc[df18job_Ea.JOB == 'Other']
df18jobTest['2018'].value_counts()


df17job_Ea.value_counts('2017')
df17job_Ea['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Developer" if x in Developer
                    else "NotEmployed" if x in Not_Employed
                    else "Other"
                   for x in df17job_Ea['2017']]

df17jobTest = df17job_Ea.loc[df17job_Ea.JOB == 'Other']
df17jobTest['2017'].value_counts()


df21jobTest = df21job_Ea.loc[df21job_Ea.JOB == 'Other']
df21jobTest['2021'].head()
df21job_Ea.value_counts('JOB')

dfjob21 =df21job_Ea.groupby(['Q3','JOB']).size().reset_index().rename(columns = {0:"Count"}).rename(columns={'Q3':'country'})
dfjob20 =df20job_Ea.groupby(['Q3','JOB']).size().reset_index().rename(columns = {0:"Count"}).rename(columns={'Q3':'country'})
dfjob19 =df19job_Ea.groupby(['Q3','JOB']).size().reset_index().rename(columns = {0:"Count"}).rename(columns={'Q3':'country'})
dfjob18 =df18job_Ea.groupby(['Q3','JOB']).size().reset_index().rename(columns = {0:"Count"}).rename(columns={'Q3':'country'})
dfjob17 =df17job_Ea.groupby(['Country','JOB']).size().reset_index().rename(columns = {0:"Count"}).rename(columns={'Country':'country'})

df21_Ea_job =df21job_Ea.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df20_Ea_job =df20job_Ea.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df19_Ea_job =df19job_Ea.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df18_Ea_job =df18job_Ea.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df17_Ea_job =df17job_Ea.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})

df21_DA=df21[df21['Q5'].isin(Data_Analyst)]
df21_DS=df21[df21['Q5'].isin(Data_Scientist)]
df21_D=df21[df21['Q5'].isin(Developer)]
df21_N=df21[df21['Q5'].isin(Not_Employed)]
df21_O=df21[df21['Q5'].isin(Others)]

World_ = np.array([df21_DA['Q5'].count(), df21_DS['Q5'].count(), df21_D['Q5'].count(), df21_N['Q5'].count(), df21_O['Q5'].count()]) 
East_Asia_ = df21_Ea_job['Count'].to_numpy()
World =((World_/World_.sum())*100).round(1)
East_Asia =((East_Asia_/East_Asia_.sum())*100).round(1)
y = df21_Ea_job.JOB.to_numpy()

fig = go.Figure(data=[
    go.Bar(y=y, x=World, orientation='h', name="World", base=0, hovertemplate='<b>World</b>: %{x}%<br>', marker_color='#979DA6', text=World, textposition='outside'),
    go.Bar(y=y, x=-East_Asia, orientation='h', name="East Asia", base=0, hovertemplate='<b>East Asia</b>: %{x}%<br>', marker_color='#F2D64B', text=East_Asia, textposition='outside')])

fig.update_layout(barmode='stack')
fig.update_layout(title='<b>World vs EastAsia</b>',title_font_size=22,
                  margin = dict(t=200, l=100, r=50, b=200),
                  height=700, width=750,
                  xaxis_title=None,
                  yaxis_title=None)
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.update_layout(legend=dict(
    orientation="h",
    yanchor="bottom",
    y=1.1,
    xanchor="right",
    x=1))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.5,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

World Job Ratio: Heat Map

The trend of increasing each job except Others.

Data Scientist has a high proportion, and the trend is to increase further in 2022.

East Asia Job Ratio: Heat Map

East Asia : Increasing the ratio of data scientist. 
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#data preprocessing
df21job= df21.loc[:,['region','Q5']].rename(columns={'Q5':'2021'}).fillna('Others')
df20job= df20.loc[:,['region','Q5']].rename(columns={'Q5':'2020'}).fillna('Others')
df19job= df19.loc[:,['region','Q5']].rename(columns={'Q5':'2019'}).fillna('Others')
df18job= df18.loc[:,['region','Q6']].rename(columns={ 'Q6':'2018'}).fillna('Others')
df17job= df17.loc[:,['region','CurrentJobTitleSelect']].rename(columns={'CurrentJobTitleSelect':'2017'}).fillna('Others')

df21job['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist # Data Scientist
                   else "Developer" if x in Developer
                    else "NotEmployed" if x in Not_Employed
                   else "Others" 
                   for x in df21job['2021']]


df20job['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Developer" if x in Developer
                    else "NotEmployed" if x in Not_Employed
                   else "Others"
                   for x in df20job['2020']]


df19job['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Developer" if x in Developer
                    else "NotEmployed" if x in Not_Employed
                    else "Others"
                   for x in df19job['2019']]


df18job['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Developer" if x in Developer
                    else "NotEmployed" if x in Not_Employed
                    else "Others"
                   for x in df18job['2018']]


df17job['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Developer" if x in Developer
                    else "NotEmployed" if x in Not_Employed
                    else "Others"
                   for x in df17job['2017']]

df21_job =df21job.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df20_job =df20job.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df19_job =df19job.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df18_job =df18job.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df17_job =df17job.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})

merge11=pd.merge(df21_job,df20_job, how='outer',on='JOB')
merge21=pd.merge(df19_job,df18_job, how='outer',on='JOB')
merge31=pd.merge(merge11,merge21, how='outer',on='JOB')
merge_Wo=(pd.merge(merge31,df17_job, how='outer',on='JOB')
            .rename(columns = {'Count_x_x':'2021','Count_y_x':'2020','Count_x_y':'2019','Count_y_y':'2018','Count':'2017'}).fillna(0)
            .reindex(columns = ['JOB','2017','2018','2019','2020','2021' ]))

df21job_Ea = df21job[df21job['region'] == 'EastAsia'].loc[:,['region','JOB']].rename(columns={'region':'EastAsia'})
df20job_Ea = df20job[df20job['region'] == 'EastAsia'].loc[:,['region','JOB']].rename(columns={'region':'EastAsia'})
df19job_Ea = df19job[df19job['region'] == 'EastAsia'].loc[:,['region','JOB']].rename(columns={'region':'EastAsia'})
df18job_Ea = df18job[df18job['region'] == 'EastAsia'].loc[:,['region','JOB']].rename(columns={'region':'EastAsia'})
df17job_Ea = df17job[df17job['region'] == 'EastAsia'].loc[:,['region','JOB']].rename(columns={'region':'EastAsia'})

df21job_Ea =df21job_Ea.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df20job_Ea =df20job_Ea.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df19job_Ea =df19job_Ea.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df18job_Ea =df18job_Ea.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})
df17job_Ea =df17job_Ea.groupby(['JOB']).size().reset_index().rename(columns = {0:"Count"})

merge1=pd.merge(df21job_Ea,df20job_Ea, how='outer',on='JOB')
merge2=pd.merge(df19job_Ea,df18job_Ea, how='outer',on='JOB')
merge3=pd.merge(merge1,merge2, how='outer',on='JOB')
merge=(pd.merge(merge3,df17job_Ea, how='outer',on='JOB')
         .rename(columns = {'Count_x_x':'2021','Count_y_x':'2020','Count_x_y':'2019','Count_y_y':'2018','Count':'2017'}).fillna(0)
         .reindex(columns = ['JOB','2017','2018','2019','2020','2021' ]))

#graph
z1=((merge_Wo.iloc[:,[1,2,3,4,5]].to_numpy()/merge_Wo.iloc[:,[1,2,3,4,5]].to_numpy().sum())*100).round(1)
z2=((merge.iloc[:,[1,2,3,4,5]].to_numpy()/merge.iloc[:,[1,2,3,4,5]].to_numpy().sum())*100).round(1)

x=['2017-year','2018-year','2019-year','2020-year','2021-year']
y1=merge_Wo['JOB'].tolist()
y2=merge['JOB'].tolist()


fig1 = ff.create_annotated_heatmap(z1, x = x, y = y1, colorscale='sunset')
fig2 = ff.create_annotated_heatmap(z2, x = x, y = y2, colorscale='sunset')

for annot in fig2['layout']['annotations']:
    annot['xref'] = 'x2'
    
fig = make_subplots(rows=1, cols=2)
fig.add_trace(fig1.data[0], row=1, col=1)
fig.add_trace(fig2.data[0], row=1, col=2)
fig.update_layout(fig1.layout, title='<b>           World vs EastAsia</b>',title_font_size=22,
                  margin = dict(t=200, l=100, r=10, b=200),
                  height=700, width=1150, coloraxis=dict(showscale=True, colorscale='sunset'))
fig.update_traces(hovertemplate='<b>Job</b>: %{y}<br>'+
                                '<b>Year</b>: %{x}<br>'+
                                '<b>Percent</b>: %{z}%')
fig.layout.annotations += fig2.layout.annotations
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.9,
                                    y=-0.25,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))

fig.show()

3.1.4 Age transformation

> Age change in World and East Asia by year: Stacked scatter plot

  1. In the case of Age data, there is no 2017 data.
  2. 70% of the World respondents said 20s to 30s.
  3. 70% of East Asia respondents said 20s to 30s.
  4. The number of respondents increases, but the ratio seems to have stabilized.
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#data preprocessing
#World
Age21_W = df21.loc[:,['Q3','Q1', 'year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age20_W = df20.loc[:,['Q3','Q1','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age19_W = df19.loc[:,['Q3','Q1','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age18_W = df18.loc[:,['Q3','Q2','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q2':'age'}).fillna('etc')

Age5y_W= pd.concat([Age21_W, Age20_W, Age19_W, Age18_W])
Age5y_W= (Age5y_W.replace(['60-69', '70+', '70-79', '80+'], '60+')
           .replace(['22-24', '25-29'], '22-29')
           .replace(['30-34', '35-39'], '30-39')
            .replace(['40-44', '45-49'], '40-49')
        .replace(['50-54', '55-59'], '50-59')
           .groupby(['year', 'age'])
           .size()
           .reset_index()
           .rename(columns = {0:"Count"}))

Age21_percent_W = Age5y_W[Age5y_W['year'] == "2021"].reset_index(drop = True)
Age21_percent_W['percentage'] = Age21_percent_W["Count"] / Age21_percent_W["Count"].sum()
Age21_percent_W['%'] = np.round(Age21_percent_W['percentage'] * 100, 1)

Age20_percent_W = Age5y_W[Age5y_W['year'] == "2020"].reset_index(drop = True)
Age20_percent_W['percentage'] = Age20_percent_W["Count"] / Age20_percent_W["Count"].sum()
Age20_percent_W['%'] = np.round(Age20_percent_W['percentage'] * 100, 1)

Age19_percent_W = Age5y_W[Age5y_W['year'] == "2019"].reset_index(drop = True)
Age19_percent_W['percentage'] = Age19_percent_W["Count"] / Age19_percent_W["Count"].sum()
Age19_percent_W['%'] = np.round(Age19_percent_W['percentage'] * 100, 1)

Age18_percent_W = Age5y_W[Age5y_W['year'] == "2018"].reset_index(drop = True)
Age18_percent_W['percentage'] = Age18_percent_W["Count"] / Age18_percent_W["Count"].sum()
Age18_percent_W['%'] = np.round(Age18_percent_W['percentage'] * 100, 1)

Age5y_percent_W = pd.concat([Age18_percent_W, Age19_percent_W, Age20_percent_W, Age21_percent_W], ignore_index = True)
Age5y_percent_W= pd.pivot(Age5y_percent_W, index = "year", columns = 'age', values = "%").reset_index()
Age5y_percent_W

Age21 = df21_Ea.loc[:,['Q3','Q1', 'year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age20 = df20_Ea.loc[:,['Q3','Q1','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age19 = df19_Ea.loc[:,['Q3','Q1','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age18 = df18_Ea.loc[:,['Q3','Q2','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q2':'age'}).fillna('etc')

Age5y= pd.concat([Age21, Age20, Age19, Age18])
Age5y= (Age5y.replace(['60-69', '70+', '70-79', '80+'], '60+')
           .replace(['22-24', '25-29'], '22-29')
           .replace(['30-34', '35-39'], '30-39')
            .replace(['40-44', '45-49'], '40-49')
        .replace(['50-54', '55-59'], '50-59')
           .groupby(['year', 'age'])
           .size()
           .reset_index()
           .rename(columns = {0:"Count"}))

#EastAsia
Age21_percent = Age5y[Age5y['year'] == "2021"].reset_index(drop = True)
Age21_percent['percentage'] = Age21_percent["Count"] / Age21_percent["Count"].sum()
Age21_percent['%'] = np.round(Age21_percent['percentage'] * 100, 1)
Age21_percent

Age20_percent = Age5y[Age5y['year'] == "2020"].reset_index(drop = True)
Age20_percent['percentage'] = Age20_percent["Count"] / Age20_percent["Count"].sum()
Age20_percent['%'] = np.round(Age20_percent['percentage'] * 100, 1)
Age20_percent

Age19_percent = Age5y[Age5y['year'] == "2019"].reset_index(drop = True)
Age19_percent['percentage'] = Age19_percent["Count"] / Age19_percent["Count"].sum()
Age19_percent['%'] = np.round(Age19_percent['percentage'] * 100, 1)
Age19_percent

Age18_percent = Age5y[Age5y['year'] == "2018"].reset_index(drop = True)
Age18_percent['percentage'] = Age18_percent["Count"] / Age18_percent["Count"].sum()
Age18_percent['%'] = np.round(Age18_percent['percentage'] * 100, 1)
Age18_percent

Age5y_percent = pd.concat([Age18_percent, Age19_percent, Age20_percent, Age21_percent], ignore_index = True)
Age5y_percent= pd.pivot(Age5y_percent, index = "year", columns = 'age', values = "%").reset_index()
Age5y_percent

Age5y_percent_order = Age5y_percent_W['year'].tolist()
Age5y_order = Age5y_W['age'].unique().tolist()

#graph1
fig = go.Figure()
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['18-21'].tolist(), 
    mode = "lines", 
    name = '18-21',
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#F2798F'))

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['22-29'].tolist(), 
    mode = "lines", 
    name = "20s",
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#88BFBA'))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['30-39'].tolist(), 
    mode = "lines", 
    name = "30s",
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#CDD9A3'))

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['40-49'].tolist(), 
    mode = "lines", 
    name = "40s",
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#F28705'))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['50-59'].tolist(), 
    mode = "lines", 
    name = "50s",
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#D9946C'))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['60+'].tolist(), 
    mode = "lines", 
    name = "60s<",
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#F2D64B'))

fig.update_traces(hovertemplate='<b>Percent</b>: %{y}%<br>'+
                                '<b>Year</b>: %{x}<br>')
fig.update_layout(yaxis_range = (0, 100), height=500, width=700,
                 title_text="<b>World</b>", title_font_size=20,
                 title_x=0.5)
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

#graph2
Age5y_percent_order = Age5y_percent['year'].tolist()
Age5y_order = Age5y['age'].unique().tolist()

fig = go.Figure()

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['18-21'].tolist(), 
    mode = "lines", 
    name = '18-21',
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#F2798F'))

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['22-29'].tolist(), 
    mode = "lines", 
    name = "20s",
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#88BFBA'))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['30-39'].tolist(), 
    mode = "lines", 
    name = "30s",
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#CDD9A3'))

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['40-49'].tolist(), 
    mode = "lines", 
    name = "40s",
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#F28705'))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['50-59'].tolist(), 
    mode = "lines", 
    name = "50s",
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#D9946C'))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['60+'].tolist(), 
    mode = "lines", 
    name = "60s<",
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#F2D64B'))
fig.update_traces(hovertemplate='<b>Percent</b>: %{y}%<br>'+
                                '<b>Year</b>: %{x}<br>')
fig.update_layout(yaxis_range = (0, 100), height=500, width=700,
                 title_text="<b>East Asia</b>", title_font_size=20,
                 title_x=0.5)
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

17'East Asia Age Ratio: Heat Map

  • East Asia : 50% or more. Those in their 20s and 30s.
  • Korea: Those in their 20s are the highest.
    The number of respondents in their 50s and older is also large.
  • Taiwan : The number of respondents in their 30s and older is relatively small.
  • China: 70% or more of respondents in their 30s or younger.
    Related to life expectancy?
  • Japan: Like an aging country, all ages are evenly distributed.
    Even if you’re older, there are many respondents to Kaggle.
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#data processing
df21Age_Ea = df21_Ea.loc[:,['Q3','Q1']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'2021'}).fillna('etc')

df21Age_Ea=(df21Age_Ea.replace(['60-69', '70+', '70-79', '80+'], '60+')
           .replace(['22-24', '25-29'], '22-29')
           .replace(['30-34', '35-39'], '30-39')
            .replace(['40-44', '45-49'], '40-49')
        .replace(['50-54', '55-59'], '50-59'))

# 연령-지역 %
dfKo_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='South Korea']
dfKo_Age21_per=dfKo_Age21['2021'].value_counts().to_frame().reset_index()
dfKo_Age21_per['South Korea']=((dfKo_Age21_per['2021'] / len(dfKo_Age21))*100).round(2)

dfTw_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='Taiwan']
dfTw_Age21_per=dfTw_Age21['2021'].value_counts().to_frame().reset_index()
dfTw_Age21_per['Taiwan']=((dfTw_Age21_per['2021'] / len(dfTw_Age21))*100).round(2)
dfTw_Age21_per

dfCh_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='China']
dfCh_Age21_per=dfCh_Age21['2021'].value_counts().to_frame().reset_index()
dfCh_Age21_per['China']=((dfCh_Age21_per['2021'] / len(dfCh_Age21))*100).round(2)
dfCh_Age21_per

df21Age_Ea.head()
dfJp_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='Japan']
dfJp_Age21_per=dfJp_Age21['2021'].value_counts().to_frame().reset_index()
dfJp_Age21_per['Japan']=((dfJp_Age21_per['2021'] / len(dfJp_Age21))*100).round(2)
dfJp_Age21_per


merge1= pd.merge(dfKo_Age21_per,dfTw_Age21_per, on='index', how='outer')
merge2= pd.merge(dfCh_Age21_per,dfJp_Age21_per, on='index', how='outer')
merge= pd.merge(merge1,merge2, on='index', how='outer').fillna(0).sort_values(by=['index'],ascending=True)

#graph
x1=['South Korea','Taiwan','China','Japan']
y1=merge.sort_values(by=['index'], ascending=True)['index'].tolist()
z1=merge.iloc[:,[2,4,6,8]].to_numpy()

fig = go.Figure(data=go.Heatmap(
                   z=z1,
                   x=x1,
                   y=y1,
                   hoverongaps = True,
                   opacity=1.0, xgap=2.5, ygap=2.5))
fig = ff.create_annotated_heatmap(z1, x = x1, y = y1, colorscale='sunset')
fig.update_layout(height=500, width=600,
                 title_text="<b>East Asia Age (2021)</b>", title_font_size=20,
                 title_x=0.5)
fig.update_traces(hovertemplate='<b>Age</b>: %{y}<br>'+
                                '<b>Country</b>: %{x}<br>'+
                                '<b>Percent</b>: %{z}%')
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

17’East Asia’s age ratio: Box plot

2017: Data is not a section but an individual number.

If you divide the interval, you can add it to the previous graph.

It was data that I could draw a bar plot, so I drew it.

You can see a 100-year-old in China, but they don’t remove missing values on purpose.

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# 연도별 나이 
df21Age_Ea = df21_Ea.loc[:,['Q3','Q1']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'2021'}).fillna('etc')
df20Age_Ea = df20_Ea.loc[:,['Q3','Q1']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'2020'}).fillna('etc')
df19Age_Ea = df19_Ea.loc[:,['Q3','Q1']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'2019'}).fillna('etc')
df18Age_Ea = df18_Ea.loc[:,['Q3','Q2']].reset_index().rename(columns={'Q3':'East_Asia', 'Q2':'2018'}).fillna('etc')
df17Age_Ea = df17_Ea.loc[:,['Country','Age']].reset_index().rename(columns={'Country':'East_Asia', 'Age':'2017'}).fillna('etc')

#data frame 정리
dfAge21 =df21Age_Ea.groupby(['East_Asia','2021']).size().reset_index().rename(columns = {0:"Count"})
dfAge20 =df20Age_Ea.groupby(['East_Asia','2020']).size().reset_index().rename(columns = {0:"Count"})
dfAge19 =df19Age_Ea.groupby(['East_Asia','2019']).size().reset_index().rename(columns = {0:"Count"})
dfAge18 =df18Age_Ea.groupby(['East_Asia','2018']).size().reset_index().rename(columns = {0:"Count"})
dfAge17 =(df17Age_Ea.groupby(['East_Asia','2017'])
          .size().reset_index().rename(columns = {0:"Count"}))
#graph
fig = go.Figure()

x = ['China','Japan','South Korea','Taiwan']

fig.add_trace(go.Box( y=dfAge17['2017'][dfAge17['East_Asia']=="Japan"].to_numpy(),
    name='Japan',
    marker=dict(color='#CDD9A3')))
fig.add_trace(go.Box(y=dfAge17['2017'][dfAge17['East_Asia']=="China"].to_numpy(),
    name='China',
    marker=dict(color='#88BFBA')))
fig.add_trace(go.Box(y=dfAge17['2017'][dfAge17['East_Asia']=="South Korea"].to_numpy(),
    name='South Korea',
    marker=dict(color='#F2798F')))
fig.add_trace(go.Box(y=dfAge17['2017'][dfAge17['East_Asia']=="Taiwan"].to_numpy(),
    name='Taiwan',
    marker=dict(color='#F28705'
    ),))

fig.update_layout(yaxis = dict(range=[0, 120]))


fig.update_layout(yaxis_range = (0, 110), height=600, width=700,
                  title_text="<b>Age in East Asia (2017)</b>", title_font_size=20,
                  margin = dict(t=100, l=50, r=50, b=100),
                  title_x=0.5)

fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.update_layout(legend=dict(
    orientation="v",
    yanchor="bottom",
    y=0.8,
    xanchor="right",
    x=1))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

3.1.5 Degree transformation

World job ratio in each country: pie plot

  • World: 90% or higher Bachelor’s degree
  • East Asia: 85% bachelor’s degree or higher
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#data preprocessing
degree_wo = (df21['Q4']
             .replace(['No formal education past high school',
                       'Some college/university study without earning a bachelor’s degree'],'~college')
             .replace(['Doctoral degree',
                       'Professional doctorate'],'Doctoral degree~')
             .value_counts().to_frame())
degree_ea = (df21_Ea['Q4']
             .replace(['No formal education past high school',
                       'Some college/university study without earning a bachelor’s degree'],'~college')
             .replace(['Doctoral degree',
                       'Professional doctorate'],'Doctoral degree~')
             .value_counts().to_frame())

#graph
colors = ['#F2798F','#88BFBA', '#CDD9A3', '#F28705', '#D9946C']
fig = make_subplots(rows=1, cols=2, specs=[[{'type':'pie'}, {'type':'pie'}]], subplot_titles=("World", "East Asia"))
fig.add_trace(go.Pie(marker=dict(colors=colors), labels=degree_wo.index, values=degree_wo['Q4'].to_numpy(), name="World"),
              1, 1)
fig.add_trace(go.Pie(marker=dict(colors=colors), labels=degree_ea.index, values=degree_ea['Q4'].to_numpy(), name="East Asia"),
              1, 2)

fig.update_traces(hole=.0, hoverinfo="label+percent+name")

fig.update_layout(title='<b>World vs East Asia</b>',title_font_size=22,
                  margin = dict(t=200, l=30, r=0, b=200),
                  height=700, width=700)
fig.update_layout(legend=dict(
    orientation="h",
    yanchor="bottom",
    y=1.1,
    xanchor="right",
    x=1.0))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.5,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

Percentage of East Asia degrees by year: sunburst plot

The highest percentage of respondents with master’s degrees per year

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#data preprocessing
df21_Ea_degree=(df21_Ea['Q4'].replace(['No formal education past high school', 'Some college/university study without earning a bachelor’s degree'],'~college')
                             .replace(['Doctoral degree','Professional doctorate'],'Doctoral degree~')
                             .value_counts().to_frame().rename(columns={'Q4':'2021'}))
df20_Ea_degree=(df20_Ea['Q4'].replace(['No formal education past high school', 'Some college/university study without earning a bachelor’s degree'],'~college')
                             .replace(['Doctoral degree', 'Professional degree'],'Doctoral degree~')
                             .value_counts().to_frame().rename(columns={'Q4':'2020'}))
df19_Ea_degree=(df19_Ea['Q4'].replace(['No formal education past high school','Some college/university study without earning a bachelor’s degree'],'~college')
                             .replace(['Doctoral degree', 'Professional degree'],'Doctoral degree~')
                             .value_counts().to_frame().rename(columns={'Q4':'2019'}))
df18_Ea_degree=(df18_Ea['Q4'].replace(['No formal education past high school', 'Some college/university study without earning a bachelor’s degree'],'~college')
                             .replace(['Doctoral degree', 'Professional degree'],'Doctoral degree~')
                             .value_counts().to_frame().rename(columns={'Q4':'2018'}))
df17_Ea_degree=(df17_Ea['FormalEducation']
                .replace(['No formal education past high school', 'Some college/university study without earning a bachelor’s degree'],'~college')
                .replace(['Doctoral degree', 'Professional degree'],'Doctoral degree~')
                .value_counts().to_frame()
                .rename(columns={'FormalEducation':'2017'} ,index = {'I did not complete any formal education past high school':'No formal education past high school','Master\'s degree':'Master’s degree','Bachelor\'s degree':'Bachelor’s degree','Some college/university study without earning a bachelor\'s degree':'Some college/university study without earning a bachelor’s degree'})  )
                
concat1 = pd.concat([df21_Ea_degree,df20_Ea_degree],axis=1, join='outer')  
concat2 = pd.concat([df19_Ea_degree,df18_Ea_degree],axis=1, join='outer')  
concat3 = pd.concat([concat1,concat2],axis=1, join='outer') 
df21_Ea_degree_yearly_=concat3.join(df17_Ea_degree).fillna(0).transpose() #.transpose() 행 열 바꾸기

df21_Ea_degree_yearly=df21_Ea_degree_yearly_.stack().to_frame().reset_index().rename(columns={'level_0':'year','level_1':'degree',0:'value'})
df21_Ea_degree_yearly

#graph
fig = px.sunburst(df21_Ea_degree_yearly, path=['year','degree'], values=df21_Ea_degree_yearly['value'].tolist())
fig.update_layout( margin = dict(t=10, l=10, r=10, b=10),colorway=("#F2798F","#88BFBA","#CDD9A3",'#F28705','#D9946C'))

fig.update_layout(title='<b>         Degree</b>',title_font_size=25,
                  margin = dict(t=100, l=100, r=50, b=100),
                  height=700, width=700)
fig.update_traces(hovertemplate='<b>Name</b>: %{id}<br>'+
                                '<b>Count</b>: %{value}<br>'+
                                '<b>Parent</b>: %{parent}') 
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

Plus we could see the advantages of Plotly in this graph.

Matplotlib draws a static graph, but Plotly can dynamically click and move, and it supports zooming out, zooming in, and downloading graphs.

Because all of our graphs are made of plotly, the viewer can represent or remove items in the graph if desired.
With a click

East Asia Degree Ratio: Bar plot

40% of master’s degrees or higher, and respondents have a high educational background.

  • China and Japan have similar trends to East Asia and the World.

    The number of people itself is large, so a representative trend seems to appear here.

    However, it is noteworthy that the two countries have the same tendency.

  • Korea: It is the only country among the four countries with a high degree of education below Ph.D., bachelor’s degree, and junior college. Only masters are low.
    (Polarization of education?)

  • Taiwan: 1st place in master’s ratio (55%), 2nd place in Ph.D. or higher (13.8%).
    = The highest level of education.

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#data preprocessing
df21Edu_Ea = df21_Ea.loc[:,['Q3','Q4']].reset_index().rename(columns={'Q3':'East_Asia', 'Q4':'Dgree'}).fillna('etc')
df21Edu_Ea =(df21Edu_Ea.replace({'I prefer not to answer':'etc'}).replace(['No formal education past high school',
                       'Some college/university study without earning a bachelor’s degree'],'~college')
             .replace(['Doctoral degree',
                       'Professional doctorate'],'Doctoral degree~'))

df21Edu_Ea= (df21Edu_Ea
           .groupby(['East_Asia', 'Dgree'])
           .size()
           .reset_index()
           .rename(columns = {0:"Count"}))

# 연령-지역 %
dfKo_Edu21= df21Edu_Ea[df21Edu_Ea['East_Asia']=='South Korea']
dfKo_Edu21['%']=((dfKo_Edu21['Count'] / dfKo_Edu21['Count'].sum()*100)).round(2)
dfKo_Edu21=dfKo_Edu21.sort_values(by='%', ascending=False)
dfTw_Edu21= df21Edu_Ea[df21Edu_Ea['East_Asia']=='Taiwan']
dfTw_Edu21['%']=((dfTw_Edu21['Count'] / dfTw_Edu21['Count'].sum())*100).round(2)
dfTw_Edu21=dfTw_Edu21.sort_values(by='%', ascending=False)
dfCh_Edu21= df21Edu_Ea[df21Edu_Ea['East_Asia']=='China']
dfCh_Edu21['%']=((dfCh_Edu21['Count'] / dfCh_Edu21['Count'].sum())*100).round(2)
dfCh_Edu21=dfCh_Edu21.sort_values(by='%', ascending=False)
dfJp_Edu21= df21Edu_Ea[df21Edu_Ea['East_Asia']=='Japan']
dfJp_Edu21['%']=((dfJp_Edu21['Count'] / dfJp_Edu21['Count'].sum())*100).round(2)
dfJp_Edu21=dfJp_Edu21.sort_values(by='%', ascending=False)

# #data 완성
# dfEdu_21_per = pd.concat([dfKo_Edu21, dfTw_Edu21, dfCh_Edu21, dfJp_Edu21], ignore_index = True)
# dfEdu_21_per= pd.pivot(dfEdu_21_per, index = "Dgree", columns = 'East_Asia', values = "%").reset_index()
# dfEdu_21_per

#graph
fig = make_subplots(rows = 1, cols = 4, 
                    shared_yaxes=True, 
                    vertical_spacing = 0.05)

fig.add_trace(go.Bar(x = dfCh_Edu21['Dgree'], 
                     y = dfCh_Edu21['%'], 
                     text = dfCh_Edu21['%'].astype(str) + "%", 
                     textposition='outside',
                     name='China',
                     marker_color='#88BFBA'), 
                     row = 1, col = 1)

fig.add_trace(go.Bar(x = dfJp_Edu21['Dgree'], 
                     y = dfJp_Edu21['%'], 
                     text = dfJp_Edu21['%'].astype(str) + "%", 
                     textposition='outside',
                     name='Japan',
                     marker_color='#CDD9A3'), 
                      row = 1, col = 2)

fig.add_trace(go.Bar(x = dfKo_Edu21['Dgree'], 
                     y = dfKo_Edu21['%'], 
                     text = dfKo_Edu21['%'].astype(str) + "%", 
                     textposition='outside',
                     name='South Korea',
                     marker_color='#F28705'), 
                      row = 1, col = 3)

fig.add_trace(go.Bar(x = dfTw_Edu21['Dgree'], 
                     y = dfTw_Edu21['%'], 
                     text = dfTw_Edu21['%'].astype(str) + "%", 
                     textposition='outside',
                     name='Taiwan',
                     marker_color='#D9946C'), 
                     row = 1, col = 4)

fig.update_layout(showlegend=True,title='<b>Degree in East Asia</b>',title_font_size=22,
                  margin = dict(t=200, l=100, r=50, b=200),
                  height=700, width=700)
fig.update_traces(hovertemplate='<b>Percent</b>: %{y}%<br>'+
                                '<b>Degree</b>: %{x}<br>')
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.update_layout(legend=dict(
    orientation="h",
    yanchor="bottom",
    y=1.1,
    xanchor="right",
    x=1))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.5,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

3.1.6 Experience transformation

Trends in World & East Asia Career: Stacked Scatter plot

- < 2 years: 50% of the total.
- 3-5 years: Decrease in the world, maintain East Asia ratio
- 2021 'etc data' disappeared. 
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#Exp data 전처리
# Exp 뽑아오기
Exp21_Wo = df21.loc[:,['Q3','Q6', 'year']].reset_index().rename(columns={'Q3':'Country', 'Q6':'Exp'}).fillna('etc')
Exp20_Wo = df20.loc[:,['Q3','Q6','year']].reset_index().rename(columns={'Q3':'Country', 'Q6':'Exp'}).fillna('etc')
Exp19_Wo = df19.loc[:,['Q3','Q15','year']].reset_index().rename(columns={'Q3':'Country', 'Q15':'Exp'}).fillna('etc')
Exp18_Wo = df18.loc[:,['Q3','Q8','year']].reset_index().rename(columns={'Q3':'Country', 'Q8':'Exp'}).fillna('etc')
Exp17_Wo = df17.loc[:,['Country','Tenure', 'year']].reset_index().rename(columns={'Country':'Country', 'Tenure':'Exp'}).fillna('etc')

Exp21_Wo= Exp21_Wo.replace({'I have never written code': '< 1 years',  '1-3 years': '1-2 years'}).replace(['10-20 years', '20+ years'], '10+ years' )
Exp20_Wo= Exp20_Wo.replace({'I have never written code': '< 1 years'}).replace(['10-20 years', '20+ years'], '10+ years' )
Exp19_Wo= Exp19_Wo.replace({'I have never written code': '< 1 years'}).replace(['10-20 years', '20+ years'], '10+ years' )
Exp18_Wo= (Exp18_Wo.replace({'0-1': '< 1 years', '1-2': '1-2 years', '5-10':'5-10 years'})
        .replace(['2-3', '3-4',  '4-5'],'3-5 years')
       .replace(['10-15', '15-20','20-25', '30 +','25-30'],'10+ years'))
Exp17_Wo=(Exp17_Wo.replace({'More than 10 years':'10+ years', '1 to 2 years':'1-2 years',  'Less than a year':'< 1 years',
       '3 to 5 years':'3-5 years', "I don't write code to analyze data":'< 1 years',
       '6 to 10 years':'5-10 years'}))
                                                                                                                   
#data 정제(한꺼번에 이름바꾸기)
Exp5y_Wo= pd.concat([Exp17_Wo, Exp18_Wo, Exp19_Wo, Exp20_Wo, Exp21_Wo]).reset_index()
Exp5y_Wo=(Exp5y_Wo.groupby(['year', 'Exp'])
           .size()
           .reset_index()
           .rename(columns = {0:"Count"}))

#percent data 넣기
Exp21_per_W= Exp5y_Wo[Exp5y_Wo['year'] == "2021"].reset_index(drop = True)
Exp21_per_W['percentage'] = Exp21_per_W["Count"] / Exp21_per_W["Count"].sum()
Exp21_per_W['%'] = np.round(Exp21_per_W['percentage'] * 100, 1)

Exp20_per_W = Exp5y_Wo[Exp5y_Wo['year'] == "2020"].reset_index(drop = True)
Exp20_per_W['percentage'] = Exp20_per_W["Count"] / Exp20_per_W["Count"].sum()
Exp20_per_W['%'] = np.round(Exp20_per_W['percentage'] * 100, 1)

Exp19_per_W = Exp5y_Wo[Exp5y_Wo['year'] == "2019"].reset_index(drop = True)
Exp19_per_W['percentage'] = Exp19_per_W["Count"] / Exp19_per_W["Count"].sum()
Exp19_per_W['%'] = np.round(Exp19_per_W['percentage'] * 100, 1)

Exp18_per_W = Exp5y_Wo[Exp5y_Wo['year'] == "2018"].reset_index(drop = True)
Exp18_per_W['percentage'] = Exp18_per_W["Count"] / Exp18_per_W["Count"].sum()
Exp18_per_W['%'] = np.round(Exp18_per_W['percentage'] * 100, 1)

Exp17_per_W = Exp5y_Wo[Exp5y_Wo['year'] == "2017"].reset_index(drop = True)
Exp17_per_W['percentage'] = Exp17_per_W["Count"] / Exp17_per_W["Count"].sum()
Exp17_per_W['%'] = np.round(Exp17_per_W['percentage'] * 100, 1)

#data 완성
Exp5y_per_W = pd.concat([Exp17_per_W, Exp18_per_W, Exp19_per_W, Exp20_per_W, Exp21_per_W], ignore_index = True)
Exp5y_per_W= pd.pivot(Exp5y_per_W, index = "year", columns = 'Exp', values = "%").reset_index()
Exp5y_per_W.fillna('0')
Exp5y_percent_order = Exp5y_per_W['year'].tolist()

fig = go.Figure()
fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_per_W['< 1 years'].tolist(), 
    mode = "lines", 
    name = '< 1 years',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#F2798F'))
fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_per_W['1-2 years'].tolist(), 
    mode = "lines", 
    name = '1-2 years',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#88BFBA'))
fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_per_W['3-5 years'].tolist(), 
    mode = "lines", 
    name = '3-5 years',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#CDD9A3'))
fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_per_W['5-10 years'].tolist(), 
    mode = "lines", 
    name = '5-10 years',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#F28705'))
fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_per_W['10+ years'].tolist(), 
    mode = "lines", 
    name = '10+ years',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#D9946C'))

fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_per_W['etc'].tolist(), 
    mode = "lines", 
    name = 'etc',
    line = dict(width = 1),
    stackgroup = "one",
    marker_color='#F2D64B'))

fig.update_traces(hovertemplate='<b>Percent</b>: %{y}%<br>')
fig.update_layout(yaxis_range = (0, 100), title_font_size=20,
                  title_text="<b>Experience in world</b>",
                  height=500, width=700,
                  title_x=0.5)
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

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#data preprocessing
Exp21 = df21_Ea.loc[:,['Q3','Q6', 'year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q6':'Exp'}).fillna('etc')
Exp20 = df20_Ea.loc[:,['Q3','Q6','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q6':'Exp'}).fillna('etc')
Exp19 = df19_Ea.loc[:,['Q3','Q15','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q15':'Exp'}).fillna('etc')
Exp18 = df18_Ea.loc[:,['Q3','Q8','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q8':'Exp'}).fillna('etc')
Exp17 = df17_Ea.loc[:,['Country','Tenure', 'year']].reset_index().rename(columns={'Country':'East_Asia', 'Tenure':'Exp'}).fillna('etc')

Exp21Uni=['3-5 years', '< 1 years', '1-3 years', '10-20 years',
       'I have never written code', '5-10 years', '20+ years']
Exp20Uni= ['3-5 years', '< 1 years', '5-10 years', '1-2 years', 'etc',
       '20+ years', '10-20 years', 'I have never written code']
Exp19Uni=['1-2 years', '5-10 years', '< 1 years',
       'I have never written code', '3-5 years', '10-20 years',
       '20+ years', 'etc']
Exp18Uni=['0-1', '2-3', '1-2', '5-10', '3-4', '10-15', '15-20', '4-5',
       '20-25', '30 +', 'etc', '25-30']
Exp17Uni=['More than 10 years', '1 to 2 years', 'etc', 'Less than a year',
       '3 to 5 years', "I don't write code to analyze data",
       '6 to 10 years']

Exp21= Exp21.replace({'I have never written code': '< 1 years',  '1-3 years': '1-2 years'}).replace(['10-20 years', '20+ years'], '10+ years' )
Exp20= Exp20.replace({'I have never written code': '< 1 years'}).replace(['10-20 years', '20+ years'], '10+ years' )
Exp19= Exp19.replace({'I have never written code': '< 1 years'}).replace(['10-20 years', '20+ years'], '10+ years' )
Exp18= (Exp18.replace({'0-1': '< 1 years', '1-2': '1-2 years', '5-10':'5-10 years'})
        .replace(['2-3', '3-4',  '4-5'],'3-5 years')
       .replace(['10-15', '15-20','20-25', '30 +','25-30'],'10+ years'))
Exp17=(Exp17.replace({'More than 10 years':'10+ years', '1 to 2 years':'1-2 years',  'Less than a year':'< 1 years',
       '3 to 5 years':'3-5 years', "I don't write code to analyze data":'< 1 years',
       '6 to 10 years':'5-10 years'}))
                                                                                                                
Exp5y= pd.concat([Exp17, Exp18, Exp19, Exp20, Exp21]).reset_index()
Exp5y=(Exp5y.groupby(['year', 'Exp'])
           .size()
           .reset_index()
           .rename(columns = {0:"Count"}))

Exp21_percent = Exp5y[Exp5y['year'] == "2021"].reset_index(drop = True)
Exp21_percent['percentage'] = Exp21_percent["Count"] / Exp21_percent["Count"].sum()
Exp21_percent['%'] = np.round(Exp21_percent['percentage'] * 100, 1)
Exp21_percent

Exp20_percent = Exp5y[Exp5y['year'] == "2020"].reset_index(drop = True)
Exp20_percent['percentage'] = Exp20_percent["Count"] / Exp20_percent["Count"].sum()
Exp20_percent['%'] = np.round(Exp20_percent['percentage'] * 100, 1)
Exp20_percent

Exp19_percent = Exp5y[Exp5y['year'] == "2019"].reset_index(drop = True)
Exp19_percent['percentage'] = Exp19_percent["Count"] / Exp19_percent["Count"].sum()
Exp19_percent['%'] = np.round(Exp19_percent['percentage'] * 100, 1)
Exp19_percent

Exp18_percent = Exp5y[Exp5y['year'] == "2018"].reset_index(drop = True)
Exp18_percent['percentage'] = Exp18_percent["Count"] / Exp18_percent["Count"].sum()
Exp18_percent['%'] = np.round(Exp18_percent['percentage'] * 100, 1)
Exp18_percent

Exp17_percent = Exp5y[Exp5y['year'] == "2017"].reset_index(drop = True)
Exp17_percent['percentage'] = Exp17_percent["Count"] / Exp17_percent["Count"].sum()
Exp17_percent['%'] = np.round(Exp17_percent['percentage'] * 100, 1)
Exp17_percent


#graph
Exp5y_percent = pd.concat([Exp17_percent, Exp18_percent, Exp19_percent, Exp20_percent, Exp21_percent], ignore_index = True)
Exp5y_percent= pd.pivot(Exp5y_percent, index = "year", columns = 'Exp', values = "%").reset_index()
Exp5y_percent.fillna('0')

Exp5y_percent_order = Exp5y_percent['year'].tolist()

fig = go.Figure()

fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_percent['< 1 years'].tolist(), 
    mode = "lines", 
    name = '< 1 years',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#F2798F'))
fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_percent['1-2 years'].tolist(), 
    mode = "lines", 
    name = '1-2 years',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#88BFBA'))
fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_percent['3-5 years'].tolist(), 
    mode = "lines", 
    name = '3-5 years',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#CDD9A3'))
fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_percent['5-10 years'].tolist(), 
    mode = "lines", 
    name = '5-10 years',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#F28705'))
fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_percent['10+ years'].tolist(), 
    mode = "lines", 
    name = '10+ years',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#D9946C'))
fig.add_trace(go.Scatter(
    x = Exp5y_percent_order, 
    y = Exp5y_percent['etc'].tolist(), 
    mode = "lines", 
    name = 'etc',
    line = dict(width = 0.5),
    stackgroup = "one",
    marker_color='#F2D64B'))
fig.update_traces(hovertemplate='<b>Percent</b>: %{y}%<br>')
fig.update_layout(yaxis_range = (0, 100),
                  title_text="<b>Experience in East Asia</b>",
                  height=500, width=700, title_font_size=20,
                  title_x=0.5)
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

3.1.7 Salary transformation

World & East Asia Annual salary: Bar-H plot

  • $ 200,000 ~ : World (2.9%) is more than 50% compared to East Asia (1.3%)
  • $ ~250,000 : World (59.2%) is less than East Asia (50.3%)

    = East Asia’s annual salary gap between rich and poor is less.
  • $ 25,000~60,000: The highest section in East Asia at 24%.

    = The annual salary section that we aim for.
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#data preprocessing
df21_salary_=df21['Q25'].value_counts().to_frame().rename(index={'$0-999':'<999','>$1,000,000':'1,000,000~','$500,000-999,999':'500,000-999,999'}).fillna(0)
df21_Ea_salary_=df21_Ea['Q25'].value_counts().to_frame().rename(index={'$0-999':'<999','>$1,000,000':'1,000,000~','$500,000-999,999':'500,000-999,999'}).fillna(0)

#퍼센트
df21_salary__=(df21_salary_['Q25']/(df21_salary_['Q25'].sum())*100).round(1).to_frame().rename(columns={'Q25':'World'})
df21_Ea_salary__=(df21_Ea_salary_['Q25']/(df21_Ea_salary_['Q25'].sum())*100).round(1).to_frame().rename(columns={'Q25':'EA'})

#그룹화
df21_salary=(df21_salary__.rename(index=
                               {'1,000-1,999':'1,000-7,499',
                                '2,000-2,999':'1,000-7,499',
                                '3,000-3,999':'1,000-7,499',
                                '4,000-4,999':'1,000-7,499',
                                '5,000-7,499':'1,000-7,499'})
                                .rename(index={'7,500-9,999':'7,500-24,999',
                                '10,000-14,999':'7,500-24,999',
                                '15,000-19,999':'7,500-24,999',
                                '20,000-24,999':'7,500-24,999' })
                                .rename(index={'25,000-29,999':'25,000-59,999',
                                 '30,000-39,999':'25,000-59,999',
                                 '40,000-49,999':'25,000-59,999',
                                 '50,000-59,999':'25,000-59,999'})
                                .rename(index={'60,000-69,999':'60,000-99,999',
                                 '70,000-79,999':'60,000-99,999',
                                 '80,000-89,999':'60,000-99,999',
                                 '90,000-99,999':'60,000-99,999'})
                                .rename(index={'100,000-124,999':'100,000-199,999',
                                 '125,000-149,999':'100,000-199,999',
                                 '150,000-199,999':'100,000-199,999'})
                                .rename(index={'200,000-249,999':'200,000-1,000,000~',
                                 '250,000-299,999':'200,000-1,000,000~',
                                 '300,000-499,999':'200,000-1,000,000~',
                                 '500,000-999,999':'200,000-1,000,000~',
                                 '1,000,000~':'200,000-1,000,000~'})
                                .reset_index().groupby('index').sum()
                                 .reindex(index = ['<999', 
                                                  '1,000-7,499',
                                                  '7,500-24,999', 
                                                  '25,000-59,999', 
                                                  '60,000-99,999', 
                                                 '100,000-199,999', 
                                                 '200,000-1,000,000~']))

df21_Ea_salary=(df21_Ea_salary__.rename(index=
                               {'1,000-1,999':'1,000-7,499',
                               '2,000-2,999':'1,000-7,499',
                               '3,000-3,999':'1,000-7,499',
                               '4,000-4,999':'1,000-7,499',
                               '5,000-7,499':'1,000-7,499'})
                                .rename(index={'7,500-9,999':'7,500-24,999',
                               '10,000-14,999':'7,500-24,999',
                               '15,000-19,999':'7,500-24,999',
                               '20,000-24,999':'7,500-24,999'})
                                .rename(index={'25,000-29,999':'25,000-59,999',
                               '30,000-39,999':'25,000-59,999',
                               '40,000-49,999':'25,000-59,999',
                               '50,000-59,999':'25,000-59,999'})
                                .rename(index={'60,000-69,999':'60,000-99,999',
                               '70,000-79,999':'60,000-99,999',
                               '80,000-89,999':'60,000-99,999',
                               '90,000-99,999':'60,000-99,999'})
                                .rename(index={'100,000-124,999':'100,000-199,999',
                               '125,000-149,999':'100,000-199,999',
                               '150,000-199,999':'100,000-199,999'})
                                .rename(index={'200,000-249,999':'200,000-1,000,000~',
                               '250,000-299,999':'200,000-1,000,000~',
                               '300,000-499,999	':'200,000-1,000,000~',
                               '500,000-999,999':'200,000-1,000,000~',
                               '1,000,000~':'200,000-1,000,000~'})
                                .reset_index().groupby('index').sum()
                                .reindex(index = ['<999', 
                                                  '1,000-7,499',
                                                  '7,500-24,999', 
                                                  '25,000-59,999', 
                                                  '60,000-99,999', 
                                                 '100,000-199,999', 
                                                 '200,000-1,000,000~']))

#graph
World = df21_salary['World'].values
East_Asia = df21_Ea_salary['EA'].values
y = df21_salary.index

fig = go.Figure(data=[
    go.Bar(y=y, x=World, orientation='h', name="World", base=0, hovertemplate='<b>World</b>: %{x}%<br>', marker_color='#979DA6'),
    go.Bar(y=y, x=-East_Asia, orientation='h', name="East Asia", base=0, hovertemplate='<b>East Asia</b>: %{x}%<br>', marker_color='#F2D64B')
    ])

fig.update_layout(barmode='stack')
fig.update_layout(
    margin=dict(l=200, r=0, t=200, b=100),
    autosize=False,
    title_text="<b>                       Salary in East Asia vs World</b>", height=600, width=700, title_font_size=20, title_x=0.5)
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.update_layout(legend=dict(
    orientation="h",
    yanchor="bottom",
    y=1.1,
    xanchor="right",
    x=1))
fig.show()

World experience and annual salary: Heat Map

Relatively **positive correlation.**

  • Even with 5-10 years of experience, more than 45% has an annual salary of less than $20,000

  • With more than 10 years of experience, more than 30% receive an annual salary of $100,000.

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#data preprocessing
SalExp21= df21.loc[:, ['region', 'Q25', 'Q6']].rename(columns={'Q6':'Exp', 'Q25':'Salary'})


SalExp21=(SalExp21
          .replace(['0-999','$0-999','0'], '< 999')
          .replace({'>$1,000,000':'200,000~'})
          .replace(['1,000-1,999','2,000-2,999','3,000-3,999', 
        '4,000-4,999','5,000-7,499','7,500-9,999','10,000-14,999', '15,000-19,999'],'1,000-20,000')
          .replace(['20,000-24,999''25,000-29,999','30,000-39,999', '40,000-49,999', 
        '50,000-59,999'],'20,000-59,999') 
           .replace(['60,000-69,999', '70,000-79,999', '80,000-89,999', 
        '90,000-99,999'], '60,000-99,999')
          .replace(['100,000-124,999', '300,000-499,999',
        '125,000-149,999', '125,000-149,999',
        '150,000-199,999'],'100,000-199,999')
          .replace(['200,000-249,999', '250,000-299,999', 
        '1,000,000','$500,000-999,999'], '200,000~')
        .replace({'I have never written code': '< 1 years'})
          .replace(['10-20 years', '20+ years'], '10+ years' )
         )

sal_order=['< 999', '1,000-20,000', '20,000-59,999', '60,000-99,999','100,000-199,999', '200,000~']
Exp21_order=['< 1 years', '1-3 years','3-5 years', '5-10 years', '10+ years' ]



SalExp21_Ea = SalExp21[SalExp21['region'] == "EastAsia"].reset_index(drop = True)
SalExp21_Ea=(SalExp21_Ea.groupby(['Exp', 'Salary'])
           .size()
          .unstack().fillna(0).astype('int64'))

SalExp21_Wo = SalExp21[SalExp21['region'] == "World"].reset_index(drop = True)
SalExp21_Wo=(SalExp21_Wo.groupby(['Exp', 'Salary'])
           .size()
          .unstack().fillna(0).astype('int64'))
SalExp21_Wo



#graph
#World
z = SalExp21_Wo
z = z[sal_order]
z = z.reindex(Exp21_order)

z_data = z.apply(lambda x:np.round(x/x.sum()*100, 2), axis = 1).to_numpy() # convert to correlation matrix
x = sal_order
y = Exp21_order

fig = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")
fig.update_layout( title_text="<b>Experience and salary in World</b>",
                  height=700, width=700, title_font_size=20,
                  title_x=0.5,
                  margin=dict(l=100, r=100, t=200, b=100))

fig.add_annotation(dict(font=dict(size=14),
                                    x=0.85,
                                    y=-0.1,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()


#East Asia
z = SalExp21_Ea
z = z[sal_order]
z = z.reindex(Exp21_order)
z_data = z.apply(lambda x:np.round(x/x.sum(), 2), axis = 1).to_numpy() # convert to correlation matrix
x = sal_order
y = Exp21_order

fig = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")
fig.update_layout(title_text="<b>Experience and salary in East Asia</b>",
                  height=700, width=700, title_font_size=20,
                  title_x=0.5,
                  margin=dict(l=100, r=100, t=200, b=100))

fig.add_annotation(dict(font=dict(size=14),
                                    x=0.85,
                                    y=-0.1,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

World & East Asia Degree/Annual salary: Heat Map

  • \$ ~20,000 : Regardless of degree, about 40% of the annual salary is $ 20,000 or less.

    Guess it’s the ratio that comes from a student.
  • $ 25,000-100,000 : Earned more than 40% with a bachelor’s degree alone in East Asia

    (World: less than 20%)
  • $ 200,000~ : Even with a doctorate or higher, it is difficult to obtain it from East Asia.
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#data preprocessing
Salary21= df21.loc[:, ['region', 'Q25', 'year']].rename(columns={'Q3':'Country', 'Q25':'Salary'})
salary21_Index=['< 999', '1,000-20,000', '20,000-59,999', '60,000-99,999','100,000-199,999', '200,000~']

Salary21=(Salary21
          .replace(['0-999','$0-999','0'], '< 999')
          .replace({'>$1,000,000':'200,000~'})
          .replace(['1,000-1,999','2,000-2,999','3,000-3,999', '4,000-4,999','5,000-7,499','7,500-9,999','10,000-14,999', '15,000-19,999'],'1,000-20,000')
          .replace(['20,000-24,999''25,000-29,999','30,000-39,999', '40,000-49,999',  '50,000-59,999'],'20,000-59,999') 
           .replace(['60,000-69,999', '70,000-79,999', '80,000-89,999','90,000-99,999'], '60,000-99,999')
          .replace(['100,000-124,999', '300,000-499,999', '125,000-149,999', '125,000-149,999', '150,000-199,999'],'100,000-199,999')
          .replace(['200,000-249,999', '250,000-299,999','1,000,000','$500,000-999,999'], '200,000~')).fillna('0')
sal_order=['< 999', '1,000-20,000', '20,000-59,999', '60,000-99,999','100,000-199,999', '200,000~']

Salary21=(Salary21.groupby(['region', 'Salary'])
           .size()
           .reset_index()
           .rename(columns = {0:"Count"}))

Salary21_Ea = Salary21[Salary21['region'] == "EastAsia"].reset_index(drop = True)
Salary21_Ea['%']=((Salary21_Ea['Count'] / Salary21_Ea['Count'].sum())*100).round(2)
Salary21_Wo = Salary21[Salary21['region'] == "World"].reset_index(drop = True)
Salary21_Wo['%']=((Salary21_Wo['Count'] / Salary21_Wo['Count'].sum())*100).round(2)

Dgr_Sal_21= df21.loc[:, ['region', 'Q25', 'Q4']].rename(columns={'Q4':'Dgree', 'Q25':'Salary'})
Dgr_Sal_21 = (Dgr_Sal_21.replace(['0-999','$0-999','0'], '< 999')
          .replace({'>$1,000,000':'200,000~'})
          .replace(['1,000-1,999','2,000-2,999','3,000-3,999', '4,000-4,999','5,000-7,499','7,500-9,999','10,000-14,999', '15,000-19,999'],'1,000-20,000')
          .replace(['20,000-24,999''25,000-29,999','30,000-39,999', '40,000-49,999', '50,000-59,999'],'20,000-59,999') 
          .replace(['60,000-69,999', '70,000-79,999', '80,000-89,999', '90,000-99,999'], '60,000-99,999')
          .replace(['100,000-124,999', '300,000-499,999', '125,000-149,999', '125,000-149,999','150,000-199,999'],'100,000-199,999')
          .replace(['200,000-249,999', '250,000-299,999','1,000,000','$500,000-999,999'], '200,000~')
          .replace({'I prefer not to answer':'etc'})
          .replace(['No formal education past high school', 'Some college/university study without earning a bachelor’s degree'],'~college')
          .replace(['Doctoral degree', 'Professional doctorate'],'Doctoral degree~'))


#EastAsia 뽑기
Dgr_Sal_21_Ea= Dgr_Sal_21[Dgr_Sal_21['region'] == "EastAsia"].reset_index(drop = True)
Dgr_Sal_21_Ea = Dgr_Sal_21_Ea.groupby(['Dgree', 'Salary']).size().unstack().fillna(0).astype('int64')

dgree_order=[ '~college','Bachelor’s degree', 'Master’s degree', 'Doctoral degree~', 'etc']


#graph
#World
z = Dgr_Sal_21.groupby(['Dgree', 'Salary']).size().unstack().fillna(0).astype('int64')
z = z[sal_order]
z = z.reindex(dgree_order)

z_data = z.apply(lambda x:np.round(x/x.sum()*100, 2), axis = 1).to_numpy() # convert to correlation matrix
x = sal_order
y = dgree_order

fig = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")
fig.update_layout( title_text="<b>    Degree-Salary in World</b>",
                  height=700, width=700, title_font_size=20,
                  title_x=0.5,
                  margin=dict(l=150, r=100, t=200, b=50))
fig.update_traces(hovertemplate='<b>Degree</b>: %{y}<br>'+
                                '<b>Salary</b>: %{x}<br>'+
                                '<b>Percent</b>: %{z}%')
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.1,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()


#East Asia
z = Dgr_Sal_21_Ea
z = z[sal_order]
z = z.reindex(dgree_order)
z_data = z.apply(lambda x:np.round(x/x.sum()*100, 2), axis = 1).to_numpy() # convert to correlation matrix
x = sal_order
y = dgree_order

fig = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")
fig.update_layout(title_text="<b>    Degree-Salary in East Asia</b>",
                  height=700, width=700, title_font_size=20,
                  title_x=0.5,
                  margin=dict(l=150, r=100, t=200, b=50))
fig.update_traces(hovertemplate='<b>Degree</b>: %{y}<br>'+
                                '<b>Salary</b>: %{x}<br>'+
                                '<b>Percent</b>: %{z}%')
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.1,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

3.1.8 Language transformation

World & East Asia Programming Language: Bar plot

- Python: 80% of the world and 85% of East Asia use it.

We've been working on the project as python, so I hope we can continue to learn python and become experienced Data Scientists! 

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#data preprocessing
#world
programming_list = ["Python", "R", "SQL", "Java", "C", "Bash", "Javascript", "C++"]
programming_df = pd.Series(programming_list)

df_2019 = df19[df19['Q19'].isin(programming_df)]
df_2020 = df20[df20['Q8'].isin(programming_df)]
df_2021 = df21[df21['Q8'].isin(programming_df)]

df19Lag = df_2019.loc[:, ['region', 'Q5', 'Q19', 'year']]
df19Lag = df19Lag.rename(columns = {'Q19': 'Language'}, inplace = False) # To match with other datasets
df20Lag = df_2020.loc[:, ['region', 'Q5', 'Q8', 'year']].rename(columns = {'Q8': 'Language'}, inplace = False)
df21Lag = df_2021.loc[:, ['region', 'Q5', 'Q8', 'year']].rename(columns = {'Q8': 'Language'}, inplace = False)

df3y_Lag = pd.concat([df19Lag, df20Lag, df21Lag])
df3y_Lag = df3y_Lag.groupby(['year', 'Language']).size().reset_index().rename(columns = {0:"Count"})
df3y_Lag

# 2019
dfLang_19 = df3y_Lag[df3y_Lag['year'] == "2019"].reset_index(drop = True)
dfLang_19['percentage'] = dfLang_19["Count"] / dfLang_19["Count"].sum()
dfLang_19['%'] = np.round(dfLang_19['percentage'] * 100, 1)

# 2020
dfLang_20 = df3y_Lag[df3y_Lag['year'] == "2020"].reset_index(drop = True)
dfLang_20['percentage'] = dfLang_20["Count"] / dfLang_20["Count"].sum()
dfLang_20['%'] = np.round(dfLang_20['percentage'] * 100, 1)

# 2021
dfLang_21 = df3y_Lag[df3y_Lag['year'] == "2021"].reset_index(drop = True)
dfLang_21['percentage'] = dfLang_21["Count"] / dfLang_21["Count"].sum()
dfLang_21['%'] = np.round(dfLang_21['percentage'] * 100, 1)

dfLang_19=dfLang_19.sort_values(by='%', ascending=False)
dfLang_20=dfLang_20.sort_values(by='%', ascending=False)
dfLang_21=dfLang_21.sort_values(by='%', ascending=False)

#graph
fig = go.Figure()

fig.add_trace(go.Bar(x = dfLang_19['Language'], 
                     y = dfLang_19['%'], 
                     name = "2019", 
                     text = dfLang_19['%'].astype(str) + "%", 
                     textposition='auto', marker_color='#CDD9A3'))

fig.add_trace(go.Bar(x = dfLang_20['Language'], 
                     y = dfLang_20['%'], 
                     name = "2020", 
                     text = dfLang_20['%'].astype(str) + "%", 
                     textposition='auto', marker_color='#F28705'))

fig.add_trace(go.Bar(x = dfLang_21['Language'], 
                     y = dfLang_21['%'], 
                     name = "2021", 
                     text = dfLang_21['%'].astype(str) + "%", 
                     textposition='auto', marker_color='#88BFBA'))
fig.update_layout(title='<b>Language in World</b>',title_font_size=20,
                  margin = dict(t=100, l=100, r=50, b=100),
                  height=600, width=700,
                  xaxis_title=None,
                  yaxis_title=None)
fig.update_traces(hovertemplate='<b>Percent</b>: %{y}%<br>'+
                                '<b>Language</b>: %{x}<br>')
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.update_layout(legend=dict(
    orientation="v",
    yanchor="bottom",
    y=0.8,
    xanchor="right",
    x=1))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()
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#data prprocessing
#Ea

df_2019 = df19_Ea[df19_Ea['Q19'].isin(programming_df)]
df_2020 = df20_Ea[df20_Ea['Q8'].isin(programming_df)]
df_2021 = df21_Ea[df21_Ea['Q8'].isin(programming_df)]

df19Lag = df_2019.loc[:, ['region', 'Q5', 'Q19', 'year']]
df19Lag = df19Lag.rename(columns = {'Q19': 'Language'}, inplace = False) # To match with other datasets
df20Lag = df_2020.loc[:, ['region', 'Q5', 'Q8', 'year']].rename(columns = {'Q8': 'Language'}, inplace = False)
df21Lag = df_2021.loc[:, ['region', 'Q5', 'Q8', 'year']].rename(columns = {'Q8': 'Language'}, inplace = False)


df3y_Lag = pd.concat([df19Lag, df20Lag, df21Lag])
df3y_Lag = df3y_Lag.groupby(['year', 'Language']).size().reset_index().rename(columns = {0:"Count"})
df3y_Lag


# 2019
dfLang_19 = df3y_Lag[df3y_Lag['year'] == "2019"].reset_index(drop = True)
dfLang_19['percentage'] = dfLang_19["Count"] / dfLang_19["Count"].sum()
dfLang_19['%'] = np.round(dfLang_19['percentage'] * 100, 1)

# 2020
dfLang_20 = df3y_Lag[df3y_Lag['year'] == "2020"].reset_index(drop = True)
dfLang_20['percentage'] = dfLang_20["Count"] / dfLang_20["Count"].sum()
dfLang_20['%'] = np.round(dfLang_20['percentage'] * 100, 1)

# 2021
dfLang_21 = df3y_Lag[df3y_Lag['year'] == "2021"].reset_index(drop = True)
dfLang_21['percentage'] = dfLang_21["Count"] / dfLang_21["Count"].sum()
dfLang_21['%'] = np.round(dfLang_21['percentage'] * 100, 1)

dfLang_19=dfLang_19.sort_values(by='%', ascending=False)
dfLang_20=dfLang_20.sort_values(by='%', ascending=False)
dfLang_21=dfLang_21.sort_values(by='%', ascending=False)

#graph
fig = go.Figure()

fig.add_trace(go.Bar(x = dfLang_19['Language'], 
                     y = dfLang_19['%'], 
                     name = "2019", 
                     text = dfLang_19['%'].astype(str) + "%", 
                     textposition='auto', marker_color='#CDD9A3'))

fig.add_trace(go.Bar(x = dfLang_20['Language'], 
                     y = dfLang_20['%'], 
                     name = "2020", 
                     text = dfLang_20['%'].astype(str) + "%", 
                     textposition='auto', marker_color='#F28705'))

fig.add_trace(go.Bar(x = dfLang_21['Language'], 
                     y = dfLang_21['%'], 
                     name = "2021", 
                     text = dfLang_21['%'].astype(str) + "%", 
                     textposition='auto', marker_color='#88BFBA'))
fig.update_layout(title='<b>Language in EastAsia</b>',title_font_size=20,
                  margin = dict(t=100, l=100, r=50, b=100),
                  height=600, width=700,
                  xaxis_title=None,
                  yaxis_title=None)
fig.update_traces(hovertemplate='<b>Percent</b>: %{text}')
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

3.2 Position of Data Scientist in East Asia

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# data preprocessing
df21_Ea_DS = df21_Ea[df21_Ea['Q5'].isin(Data_Scientist)].fillna(0)

salary_order= ['<999', '1,000-19,999', '20,000-59,999', '60,000-99,999','100,000-199,999', '200,000~']
dgree_order=[ '~college','Bachelor’s degree', 'Master’s degree', 'Doctoral degree~', 'etc']

df21_Ea_DS=(df21_Ea_DS
  #salary      
          .replace({'$0-999':'<999','>$1,000,000':'1,000,000~','$500,000-999,999':'500,000-999,999'})
         
          .replace(['1,000-1,999','2,000-2,999','3,000-3,999', '4,000-4,999','5,000-7,499','7,500-9,999','10,000-14,999', '15,000-19,999'],'1,000-19,999')
          .replace(['20,000-24,999','25,000-29,999','30,000-39,999', '40,000-49,999', '50,000-59,999'],'20,000-59,999') 
          .replace(['60,000-69,999', '70,000-79,999', '80,000-89,999', '90,000-99,999'], '60,000-99,999')
          .replace(['100,000-124,999','125,000-149,999','150,000-199,999'],'100,000-199,999')
          .replace(['200,000-249,999', '250,000-299,999', '300,000-499,999','500,000-999,999', '1,000,000~'], '200,000~')
  #degree          
          .replace({'I prefer not to answer':'etc'})
          .replace(['No formal education past high school','Some college/university study without earning a bachelor’s degree'],'~college')
          .replace(['Doctoral degree', 'Professional doctorate'],'Doctoral degree~')
          )
sal_order= ['<999', '1,000-19,999', '20,000-59,999', '60,000-99,999','100,000-199,999', '200,000~']
dgree_order=[ '~college','Bachelor’s degree', 'Master’s degree', 'Doctoral degree~', 'etc']


3.2.1 Salary

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df21_Ea_DS_= df21_Ea_DS.loc[:,['Q5','Q25']].reset_index().rename(columns={'Q5':'Data_Scientist', 'Q25':'Salary'}).fillna('etc')
df21_Ea_DS_= (df21_Ea_DS_.groupby(['Data_Scientist', 'Salary']).size()
                         .reset_index()
                         .rename(columns = {0:"Count"}))

#Data Scientist
df21_Ea_DS_Ds = df21_Ea_DS_[df21_Ea_DS_['Data_Scientist'] == "Data Scientist"].reset_index(drop = True)
df21_Ea_DS_Ds['%']=((df21_Ea_DS_Ds['Count'] / df21_Ea_DS_Ds['Count'].sum())*100).round(2)

#Machine Learning Engineer
df21_Ea_DS_Mle = df21_Ea_DS_[df21_Ea_DS_['Data_Scientist'] == "Machine Learning Engineer"].reset_index(drop = True)
df21_Ea_DS_Mle['%']=((df21_Ea_DS_Mle['Count'] / df21_Ea_DS_Mle['Count'].sum())*100).round(2)

#Research Scientist
df21_Ea_DS_Rs = df21_Ea_DS_[df21_Ea_DS_['Data_Scientist'] == "Research Scientist"].reset_index(drop = True)
df21_Ea_DS_Rs['%']=((df21_Ea_DS_Rs['Count'] / df21_Ea_DS_Rs['Count'].sum())*100).round(2)
df21_Ea_DS_Rs


df21_Ea_DS_salary = pd.concat([df21_Ea_DS_Ds, df21_Ea_DS_Mle, df21_Ea_DS_Rs], ignore_index = True)
df21_Ea_DS_salary= pd.pivot(df21_Ea_DS_salary, index = "Salary", columns = 'Data_Scientist', values = "%").reset_index().fillna('0')
df21_Ea_DS_salary= df21_Ea_DS_salary.set_index("Salary").reindex(sal_order)

#graph
fig = go.Figure()
fig.add_trace(go.Bar(x = df21_Ea_DS_salary.index, 
                     y = df21_Ea_DS_salary['Data Scientist'], 
                     name = "Data Scientist", 
                     text = df21_Ea_DS_salary['Data Scientist'].astype(str) + "%", 
                     textposition='auto', marker_color='#F2798F'))

fig.add_trace(go.Bar(x = df21_Ea_DS_salary.index, 
                     y = df21_Ea_DS_salary['Machine Learning Engineer'], 
                     name = "Machine Learning Engineer", 
                     text = df21_Ea_DS_salary['Machine Learning Engineer'].astype(str) + "%", 
                     textposition='auto', marker_color='#CDD9A3'))

fig.add_trace(go.Bar(x = df21_Ea_DS_salary.index, 
                     y = df21_Ea_DS_salary['Research Scientist'], 
                     name = "Research Scientist", 
                     text = df21_Ea_DS_salary['Research Scientist'].astype(str) + "%", 
                     textposition='auto', marker_color='#88BFBA'))

fig.update_layout(barmode='stack',
                 showlegend=True,
                 height=600, width=700,
                 title_text="<b>Data Scientist's Salary in East Asia</b>",
                 title_x=0.5,
                 title_font_size=20, 
                  margin=dict(l=100, r=100, t=100, b=100))
fig.update_traces(hovertemplate='<b>Percent</b>: %{y}%<br>'+
                                '<b>Salary</b>: %{x}$<br>')
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.update_layout(legend=dict(
    orientation="v",
    yanchor="bottom",
    y=0.8,
    xanchor="right",
    x=1.2))

fig.show()

3.2.2 Salary-Experience

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df21Ea_DS_ExSal = df21_Ea_DS.loc[:,['Q6','Q25']].reset_index().rename(columns={'Q25':'Salary', 'Q6':'Exp'}).fillna('etc')
df21Ea_DS_ExSal= (df21Ea_DS_ExSal.groupby(['Exp', 'Salary']).size().unstack().fillna(0).astype('int64'))

Exp_order=['< 1 years','1-3 years','3-5 years', '5-10 years', '10-20 years', '20+ years', 'I have never written code']

df21Ea_DS_ExSal

z = df21Ea_DS_ExSal
z = z[sal_order]
z = z.reindex(Exp_order)

z_data = z.apply(lambda x:np.round(x/x.sum()*100, 2), axis = 1).to_numpy() # convert to correlation matrix
x = sal_order
y = Exp_order

fig = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")
fig.update_layout(title_text="<b>    Data Scientist's Experience & Salary </b>",title_font_size=20,
                  height=700, width=700,
                  title_x=0.5,
                  margin=dict(l=100, r=100, t=200, b=100))
fig.update_traces(hovertemplate='<b>Salary</b>: %{y}<br>'+
                                '<b>Experience</b>: %{x}<br>'+
                                '<b>Percent</b>: %{z}%')

fig.show()

3.2.3 Degree

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df21_Ea_degree = df21_Ea_DS['Q4'].value_counts().to_frame()
degree = df21_Ea_degree.index
values = df21_Ea_degree['Q4'].tolist()

colors = ['#F2798F','#88BFBA', '#CDD9A3', '#F28705', '#D9946C']
fig = go.Figure(data=[go.Bar(name='Degree', x=degree, y=values ,orientation='v', marker_color=colors, text=values, textposition='outside')])
fig.update_layout(title_text="<b>Data Scientist's Degree (2021)</b>", title_font_size=20,
                  height=600, width=700,
                  title_x=0.5,
                  margin=dict(l=100, r=100, t=200, b=100))
fig.update_traces(hovertemplate='<b>Count</b>: %{y}<br>'+
                                '<b>Degree</b>: %{x}<br>')
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

3.2.4 Salary-Degree

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df21Ea_DS_EduSal= df21_Ea_DS.loc[:, ['Q4', 'Q25']].rename(columns={'Q4':'Edu', 'Q25':'Salary'})
df21Ea_DS_EduSal['Edu'].unique()
Edu_order=['~college', 'Bachelor’s degree','Master’s degree', 'Doctoral degree~', 'etc']

df21Ea_DS_EduSal= (df21Ea_DS_EduSal.groupby(['Edu', 'Salary']).size().unstack().fillna(0).astype('int64'))
df21Ea_DS_EduSal

z = df21Ea_DS_EduSal
z = z[sal_order]
z = z.reindex(Edu_order)

z_data = z.apply(lambda x:np.round(x/x.sum()*100, 2), axis = 1).to_numpy() # convert to correlation matrix
x = sal_order
y = Edu_order

fig = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")
fig.update_layout(title_text="<b>       Data Scientist's Degree & Salary </b>", title_font_size=20,
                  height=700, width=700,
                  title_x=0.5,
                  margin=dict(l=150, r=100, t=200, b=50))
fig.update_traces(hovertemplate='<b>Degree</b>: %{y}<br>'+
                                '<b>Salary</b>: %{x}<br>'+
                                '<b>Percent</b>: %{z}%')
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.1,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

3.2.5 Language

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#data preprocessing
df20_Ea_DS = df20_Ea[df20_Ea['Q5'].isin(Data_Scientist)]
df19_Ea_DS =df19_Ea[df19_Ea['Q5'].isin(Data_Scientist)]
df19Ea_DSLag = df19_Ea_DS.loc[:, [ 'Q5', 'Q19', 'year']]
df19Ea_DSLag = df19Ea_DSLag.rename(columns = {'Q19': 'Language'}, inplace = False) # To match with other datasets
df20Ea_DSLag = df20_Ea_DS.loc[:, [ 'Q5', 'Q8', 'year']].rename(columns = {'Q8': 'Language'}, inplace = False)
df21Ea_DSLag = df21_Ea_DS.loc[:, [ 'Q5', 'Q8', 'year']].rename(columns = {'Q8': 'Language'}, inplace = False)

df3y_Ds_Lag = pd.concat([df19Ea_DSLag, df20Ea_DSLag, df21Ea_DSLag])
df3y_Ds_Lag = df3y_Ds_Lag.groupby(['year', 'Language']).size().reset_index().rename(columns = {0:"Count"})
df3y_Ds_Lag

# 2019
dfLang_Ds_19 = df3y_Ds_Lag[df3y_Ds_Lag['year'] == "2019"].reset_index(drop = True)
dfLang_Ds_19['percentage'] = dfLang_Ds_19["Count"] / dfLang_Ds_19["Count"].sum()
dfLang_Ds_19['%'] = np.round(dfLang_Ds_19['percentage'] * 100, 1)

# 2020
dfLang_Ds_20 = df3y_Ds_Lag[df3y_Ds_Lag['year'] == "2020"].reset_index(drop = True)
dfLang_Ds_20['percentage'] = dfLang_Ds_20["Count"] / dfLang_Ds_20["Count"].sum()
dfLang_Ds_20['%'] = np.round(dfLang_Ds_20['percentage'] * 100, 1)

# 2021
dfLang_Ds_21 = df3y_Ds_Lag[df3y_Ds_Lag['year'] == "2021"].reset_index(drop = True)
dfLang_Ds_21['percentage'] = dfLang_Ds_21["Count"] / dfLang_Ds_21["Count"].sum()
dfLang_Ds_21['%'] = np.round(dfLang_Ds_21['percentage'] * 100, 1)

dfLang_Ds_19=dfLang_Ds_19.sort_values(by='%', ascending=False)
dfLang_Ds_20=dfLang_Ds_20.sort_values(by='%', ascending=False)
dfLang_Ds_21=dfLang_Ds_21.sort_values(by='%', ascending=False)

#graph
fig = go.Figure()

fig.add_trace(go.Bar(x = dfLang_Ds_19['Language'], 
                     y = dfLang_Ds_19['%'], 
                     name = "2019", 
                     text = dfLang_Ds_19['%'].astype(str) + "%", 
                     textposition='auto', 
                     marker_color='#CDD9A3'))

fig.add_trace(go.Bar(x = dfLang_Ds_20['Language'], 
                     y = dfLang_Ds_20['%'], 
                     name = "2020", 
                     text = dfLang_Ds_20['%'].astype(str) + "%", 
                     textposition='auto', 
                     marker_color='#F28705'))

fig.add_trace(go.Bar(x = dfLang_Ds_21['Language'], 
                     y = dfLang_Ds_21['%'], 
                     name = "2021", 
                     text = dfLang_Ds_21['%'].astype(str) + "%", 
                     textposition='auto', 
                     marker_color='#88BFBA'))

fig.update_layout(title='<b>        The language used by the data scientist</b>',title_font_size=22,
                  margin = dict(t=120, l=100, r=10, b=150),
                  height=600, width=700)
fig.update_traces(hovertemplate='<b>Percent</b>: %{y}%<br>'+
                                '<b>Language</b>: %{x}<br>')
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.update_layout(legend=dict(
    orientation="h",
    yanchor="bottom",
    y=0.8,
    xanchor="right",
    x=1))
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()
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ds_pc=(df21_Ea_DS.loc[:, ['Q5','Q25','Q6','Q4','Q8']]
                 .replace({'I have never written code': '< 1 years',  '1-3 years': '1-2 years'})
                 .replace(['10-20 years', '20+ years'], '10+ years' )
                 .replace([0,'<999'])
                 )
fig = px.parallel_categories(ds_pc, labels={'Q5':'Job', 'Q25':'Salary', 'Q6':'Experience', 'Q4':'Degree', 'Q8':'Language'})

fig.update_layout(hovermode = 'x')
fig.update_layout(title='<b>        Data Scientist</b>',title_font_size=20,
                  margin = dict(t=120, l=100, r=10, b=150),
                  height=600, width=700)
fig.add_annotation(dict(font=dict(size=14),
                                    x=0.8,
                                    y=-0.2,
                                    showarrow=False,
                                    text="@green_yhjw",
                                    xanchor='left',
                                    xref="paper",
                                    yref="paper"))
fig.show()

4. Ref.

Ref.

5. close

안녕하세요 한국에 사는 YH입니다.

python을 배운지 한달이 채 안되서 명이 한 팀이 되어 이번 대회에 참가 하게 되었습니다.

많이 부족하지만 여기까지 읽어 주셔서 감사합니다.

아직은 너무너무 부족한 제출물 이지만, 앞으로 열심히 해서 케글 대회에서 1등하는 그 날까지 지켜봐 주세요 ^^!

혹시 코멘트로 다 전하지 못하셨던 말이 있으시다면, 저의 github blog에 방문하여 도움을 주세요!

별거 없지만 놀러오세요 ;-)

Hello, I’m YH and I live in Korea.

Less than a month after learning python, people became a team and participated in this competition.

It’s not enough, but thank you for reading it up to here.

It’s still not enough, but please watch until the day we win first place at the Kaggle competition ^^!



If there’s anything you haven’t said in the comments, please visit my github blog and help me!

It’s nothing special, but come and play. ;-)

 게시 됨 업데이트 됨python - plotly13분안에 읽기 (약 1953 단어)

East Asia, Data Scientist (kaggle in East-Asia)

Data scientist in East Asia



Data scientist로써 East Asia 에서 살아 남아보자 !

Data Import

East asia data에서 DS(Data scientist)뽑아내기

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# 21년 EastAsia 의 Data Scientist
# 21년 EastAsia의 Data Scientist는 'Data Scientist', 'Machine Learning Engineer', 'Scientist/Researcher'
# Data_Scientist =['Data Scientist',  'Research Scientist', 'Researcher','Machine Learning Engineer', 'Scientist/Researcher']
df21_Ea_DS = df21_Ea[df21_Ea['Q5'].isin(Data_Scientist)]
#21년 EastAsia의 Data Scientist 설문조사 응답자 리스트 

dgree_order=[ '~college','Bachelor’s degree', 'Master’s degree', 'Doctoral degree~', 'etc']
sal_order=['< 999', '1,000-7,499', '7,500-24,999', '25,000-59,999', '60,000-99,999','100,000-199,999', '200,000~']

df21_Ea_DS=(df21_Ea_DS.replace(['0-999','$0-999','0'], '< 999')
          .replace({'>$1,000,000':'200,000~'})
          .replace(['1,000-1,999','2,000-2,999','3,000-3,999', 
        '4,000-4,999','5,000-7,499'],'1,000-7,499')
          .replace(['7,500-9,999','10,000-14,999', '15,000-19,999', 
        '20,000-24,999'],'7,500-24,999')
          .replace(['25,000-29,999','30,000-39,999', '40,000-49,999', 
        '50,000-59,999'],'25,000-59,999') 
           .replace(['60,000-69,999', '70,000-79,999', '80,000-89,999', 
        '90,000-99,999'], '60,000-99,999')
          .replace(['100,000-124,999', '300,000-499,999',
        '125,000-149,999', '125,000-149,999',
        '150,000-199,999'],'100,000-199,999')
          .replace(['200,000-249,999', '250,000-299,999', 
        '1,000,000','$500,000-999,999'], '200,000~')
           .replace({'I prefer not to answer':'etc'}).replace(['No formal education past high school',
                       'Some college/university study without earning a bachelor’s degree'],'~college')
             .replace(['Doctoral degree',
                       'Professional doctorate'],'Doctoral degree~'))

replace.()

  • replace.()를 data를 뽑아 내면서 사용 하면, 편하다.
  • 다음 project 부터는 그렇게 사용하자!
  • 순차적으로 적용 하더라도 replace.()는 맨 앞에 사용하자.
  • data를 정제할 때 구획을 어디서 나누느냐는 presentation에 중요한 구성 요소이다.(강조할 부분이 바뀐다.)


Ds의 연봉 뽑아내기

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df21_Ea_DS_= df21_Ea_DS.loc[:,['Q5','Q25']].reset_index().rename(columns={'Q5':'Data_Scientist', 'Q25':'Salary'}).fillna('etc')
df21_Ea_DS_= (df21_Ea_DS_.groupby(['Data_Scientist', 'Salary']).size()
           .reset_index()
           .rename(columns = {0:"Count"})
             )


#Data Scientist
df21_Ea_DS_Ds = df21_Ea_DS_[df21_Ea_DS_['Data_Scientist'] == "Data Scientist"].reset_index(drop = True)
df21_Ea_DS_Ds['%']=((df21_Ea_DS_Ds['Count'] / df21_Ea_DS_Ds['Count'].sum())*100).round(2)
# Salary21_Ea=Salary21_Ea.sort_values(by='%', ascending=False)

#Machine Learning Engineer
df21_Ea_DS_Mle = df21_Ea_DS_[df21_Ea_DS_['Data_Scientist'] == "Machine Learning Engineer"].reset_index(drop = True)
df21_Ea_DS_Mle['%']=((df21_Ea_DS_Mle['Count'] / df21_Ea_DS_Mle['Count'].sum())*100).round(2)

#Research Scientist
df21_Ea_DS_Rs = df21_Ea_DS_[df21_Ea_DS_['Data_Scientist'] == "Research Scientist"].reset_index(drop = True)
df21_Ea_DS_Rs['%']=((df21_Ea_DS_Rs['Count'] / df21_Ea_DS_Rs['Count'].sum())*100).round(2)
df21_Ea_DS_Rs


df21_Ea_DS_salary = pd.concat([df21_Ea_DS_Ds, df21_Ea_DS_Mle, df21_Ea_DS_Rs], ignore_index = True)
df21_Ea_DS_salary= pd.pivot(df21_Ea_DS_salary, index = "Salary", columns = 'Data_Scientist', values = "%").reset_index().fillna('0')
df21_Ea_DS_salary= df21_Ea_DS_salary.set_index("Salary").reindex(sal_order)


뽑아낸 data를 합쳐서 하나의 표로 만든다.

Excel에서 하는게 더 편하고 익숙하지만,
python을 능숙 하게 다룰 수 잇는 언젠가가 오지 않을까 싶다.


Ds의 연봉 bar graph 만들기

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fig = go.Figure()

fig.add_trace(go.Bar(x = df21_Ea_DS_salary.index, 
                     y = df21_Ea_DS_salary['Data Scientist'], 
                     name = "Data Scientist", 
                     text = df21_Ea_DS_salary['Data Scientist'].astype(str) + "%", 
                     textposition='auto'))

fig.add_trace(go.Bar(x = df21_Ea_DS_salary.index, 
                     y = df21_Ea_DS_salary['Machine Learning Engineer'], 
                     name = "Machine Learning Engineer", 
                     text = df21_Ea_DS_salary['Machine Learning Engineer'].astype(str) + "%", 
                     textposition='auto'))

fig.add_trace(go.Bar(x = df21_Ea_DS_salary.index, 
                     y = df21_Ea_DS_salary['Research Scientist'], 
                     name = "Research Scientist", 
                     text = df21_Ea_DS_salary['Research Scientist'].astype(str) + "%", 
                     textposition='auto'))


fig.update_layout(barmode='stack',
                 showlegend=True,
                 margin=dict(pad=20),
                 height=500,
                 yaxis_title=None,
                 xaxis_title=None,
                 title_text="<b>21년 East Asia의 Data Scientist의 연봉</b>",
                 title_x=0.5,
                 font=dict(size=17, color='#000000'),
                 title_font_size=35)

fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.show()

2021_DS_Salary

  • [25,000-59,999] 이 구간이 East asia의 data scientist 들의 빈도가 가장 높은 연봉 구간이다.
  • [7,500-24,999] 이 구간을 없애버리고 싶지만 (편입), 우선은 그냥 두기로 한다.

HeatMap을 그려보자

East asia의 DS들의 연봉과 경력간의 관계를 알아보고자 한다.

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df21Ea_DS_ExSal = df21_Ea_DS.loc[:,['Q6','Q25']].reset_index().rename(columns={'Q25':'Salary', 'Q6':'Exp'}).fillna('etc')
df21Ea_DS_ExSal= (df21Ea_DS_ExSal.groupby(['Exp', 'Salary']).size().unstack().fillna(0).astype('int64'))
# df21Ea_DS_ExSal['Exp'].unique()
Exp_order=['< 1 years','1-3 years','3-5 years', '5-10 years', '10-20 years', '20+ years', 'I have never written code']

df21Ea_DS_ExSal


z = df21Ea_DS_ExSal
z = z[sal_order]
z = z.reindex(Exp_order)

z_data = z.apply(lambda x:np.round(x/x.sum()*100, 2), axis = 1).to_numpy() # convert to correlation matrix
x = sal_order
y = Exp_order

fig = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")
fig.update_layout( title_text="<b>Data Scientist의 경력과 연봉 </b>",
                  height=700, width=800,
                 title_x=0.5,
                  margin=dict(l=200, r=100, t=200, b=100))
fig.show()

2021_DS_SalExp


  • data Scientist의 경력과 연봉 상관관계를 Heatmap으로 그렸다.
  • 정말 재미있는 사실은 [7,500-24,999], [60,000-99,999] 등의 구간이 비어 보인다.
    • 혹시 연봉이 반올림되는 구간이 아닐까 생각한다.
    • 다음에 연봉 구획을 다시 나눈다면 이런 부분을 신경쓰면서 나누어야 할 듯.
  • [<999] 구간은 생각보다 비율이 높은 걸을 알 수 있는데 이는 survey의 오류인듯 하다.
    • 연봉인데 월급으로 생각했다던가… 



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df21_Ea_degree = df21_Ea_DS['Q4'].value_counts().to_frame()
degree = df21_Ea_degree.index
values = df21_Ea_degree['Q4'].tolist()

fig = go.Figure(data=[
    go.Bar(name='Degree', x=degree, y=values ,orientation='v')])


fig.update_layout(
                 title_text="<b>21년 East Asia의 Data Scientist의 학력</b>",
                 )
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)
fig.show()

2021_DS_Edu



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df21Ea_DS_EduSal= df21_Ea_DS.loc[:, ['Q4', 'Q25']].rename(columns={'Q4':'Edu', 'Q25':'Salary'})
df21Ea_DS_EduSal['Edu'].unique()
Edu_order=['~college', 'Bachelor’s degree','Master’s degree', 'Doctoral degree~', 'etc']

df21Ea_DS_EduSal= (df21Ea_DS_EduSal.groupby(['Edu', 'Salary']).size().unstack().fillna(0).astype('int64'))
df21Ea_DS_EduSal



z = df21Ea_DS_EduSal
z = z[sal_order]
z = z.reindex(Edu_order)

z_data = z.apply(lambda x:np.round(x/x.sum()*100, 2), axis = 1).to_numpy() # convert to correlation matrix
x = sal_order
y = Edu_order

fig = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")
fig.update_layout( title_text="<b>Data Scientist의 경력과 연봉 </b>",
                  height=700, width=800,
                 title_x=0.5,
                  margin=dict(l=200, r=100, t=200, b=100))
fig.show()

2021_DS_Exp_sal

  • East Asia의 ds들의 연봉은 거의 [25000-60000] 구간에 들어잇는 것 같다.
  • 학위랑은 많이 상관 없어 보이며
  • 심지어 200,000~$를 받는 학사학력자가 있다. 몹시 바람직하다. 



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df20_Ea_DS = df20_Ea[df20_Ea['Q5'].isin(Data_Scientist)]
df19_Ea_DS =df19_Ea[df19_Ea['Q5'].isin(Data_Scientist)]
df19Ea_DSLag = df19_Ea_DS.loc[:, [ 'Q5', 'Q19', 'year']]
df19Ea_DSLag = df19Ea_DSLag.rename(columns = {'Q19': 'Language'}, inplace = False) # To match with other datasets
df20Ea_DSLag = df20_Ea_DS.loc[:, [ 'Q5', 'Q8', 'year']].rename(columns = {'Q8': 'Language'}, inplace = False)
df21Ea_DSLag = df21_Ea_DS.loc[:, [ 'Q5', 'Q8', 'year']].rename(columns = {'Q8': 'Language'}, inplace = False)


df3y_Ds_Lag = pd.concat([df19Ea_DSLag, df20Ea_DSLag, df21Ea_DSLag])
df3y_Ds_Lag = df3y_Ds_Lag.groupby(['year', 'Language']).size().reset_index().rename(columns = {0:"Count"})
df3y_Ds_Lag


# 2019
dfLang_Ds_19 = df3y_Ds_Lag[df3y_Ds_Lag['year'] == "2019"].reset_index(drop = True)
dfLang_Ds_19['percentage'] = dfLang_Ds_19["Count"] / dfLang_Ds_19["Count"].sum()
dfLang_Ds_19['%'] = np.round(dfLang_Ds_19['percentage'] * 100, 1)

# 2020
dfLang_Ds_20 = df3y_Ds_Lag[df3y_Ds_Lag['year'] == "2020"].reset_index(drop = True)
dfLang_Ds_20['percentage'] = dfLang_Ds_20["Count"] / dfLang_Ds_20["Count"].sum()
dfLang_Ds_20['%'] = np.round(dfLang_Ds_20['percentage'] * 100, 1)

# 2021
dfLang_Ds_21 = df3y_Ds_Lag[df3y_Ds_Lag['year'] == "2021"].reset_index(drop = True)
dfLang_Ds_21['percentage'] = dfLang_Ds_21["Count"] / dfLang_Ds_21["Count"].sum()
dfLang_Ds_21['%'] = np.round(dfLang_Ds_21['percentage'] * 100, 1)

dfLang_Ds_19=dfLang_Ds_19.sort_values(by='%', ascending=False)
dfLang_Ds_20=dfLang_Ds_20.sort_values(by='%', ascending=False)
dfLang_Ds_21=dfLang_Ds_21.sort_values(by='%', ascending=False)


fig = go.Figure()

fig.add_trace(go.Bar(x = dfLang_Ds_19['Language'], 
                     y = dfLang_Ds_19['%'], 
                     name = "2019", 
                     text = dfLang_Ds_19['%'].astype(str) + "%", 
                     textposition='auto'))

fig.add_trace(go.Bar(x = dfLang_Ds_20['Language'], 
                     y = dfLang_Ds_20['%'], 
                     name = "2020", 
                     text = dfLang_Ds_20['%'].astype(str) + "%", 
                     textposition='auto'))

fig.add_trace(go.Bar(x = dfLang_Ds_21['Language'], 
                     y = dfLang_Ds_21['%'], 
                     name = "2021", 
                     text = dfLang_Ds_21['%'].astype(str) + "%", 
                     textposition='auto'))


fig.show()

2021_DS_Langu

이 plot은 강사쌤의 도움을 많이 받았다.

2017, 2018년도도 넣고 싶었으나 data 찾는데 너무 시간이 많이 걸리는 것이

대회 마감이 얼마 남지 않은 이 시점에서 바람직 하지 못한 계획이라는 생각이 들어

이쯤에서 만족 하기로 했다.




비록 이 대회에서 우승 하지 못하겠지만,
나에게 있어 이번 대회는 의미가 크다.

내 경력에는 큰 의미가 없을지언정 ㅎㅎ



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import numpy as np
import pandas as pd
import seaborn as sns
import matplotlib.pylab as plt

import plotly.io as pio
import plotly.express as px
import plotly.graph_objects as go
import plotly.figure_factory as ff
from plotly.subplots import make_subplots
from plotly.offline import init_notebook_mode, iplot
init_notebook_mode(connected=True)
pio.templates.default = "none"
# import plotly.offline as py
# py.offline.init_notebook_mode()

import os
for dirname, _, filenames in os.walk('/kaggle/input'):
    for filename in filenames:
        print(os.path.join(dirname, filename))

import warnings
warnings.filterwarnings("ignore")

#joypy를 쓰고 싶다면, sns에 싣어야 하는데 고민.
#pip install joypy
# import joypy

# fig,axes =  joypy.joyplot(df_duration, by='year',color=palette18, alpha=0.8)
# plt.title('Time taken to complete the survey (in seconds)', size=14, fontweight='bold')
# plt.show()

# https://ichi.pro/ko/joypyleul-sayonghayeo-joy-plot-mandeulgi-113466494282576
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ds_pc=df21_Ea_DS.loc[:, ['Q5','Q25','Q6','Q4','Q8']]

fig = px.parallel_categories(ds_pc, labels={'Q5':'Job', 'Q25':'Salary', 'Q6':'Experience', 'Q4':'Degree', 'Q8':'Language'})

fig.update_layout(hovermode = 'x')
fig.update_layout(title='<b>        Data Scientist</b>',title_font_size=20,
                  margin = dict(t=120, l=100, r=10, b=150),
                  height=600, width=700)
fig.show()
 게시 됨 업데이트 됨python - plotly12분안에 읽기 (약 1782 단어)

Scatter with bar

#Kgg 대회 준비

Scatter와 bar가 함께 있는 Graph를 그려 보았다.

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fig = go.Figure()
y=[len(df17_Ea),len(df18_Ea), len(df19_Ea),len(df20_Ea),len(df21_Ea)]
fig.add_trace(go.Bar(x=years, y=y,
                base=0,
                marker_color='#D9946C',
                      yaxis = "y1",
                name='East Asia',
                text= percent,
                texttemplate='%{text}  %', 
                  textposition='outside',
                  hovertemplate='<b>KaggleUser</b>: %{x}<br>'+
                                '<b>Count</b>: %{y}',
                  textfont_size=14
                ))
fig.add_trace(
    go.Scatter(name = "World",
           x=years, 
            y=[len(df17), len(df18), len(df19), len(df20), len(df21)],
               marker_color='#88BFBA',
           mode = 'lines+markers', # please check option here
           yaxis = "y2"))

fig.update_layout(yaxis  = dict(title = "KaggleUser in World", showgrid = False, range=[0, len(df21_Ea)*1.2]),
                  yaxis2 = dict(title = "KaggleUser in East Asia", overlaying = "y1", side = "right", showgrid = False, 
                                zeroline = False, 
                                range=[0, len(df21)*1.2]), # This code solves the different zero set but with same zero values.
                  template = "plotly_white", height=500, width=700,)

fig.show()

vbar_scatters

age data , 연도별로

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#age data 전처리
# age 뽑아오기
Age21_W = df21.loc[:,['Q3','Q1', 'year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age20_W = df20.loc[:,['Q3','Q1','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age19_W = df19.loc[:,['Q3','Q1','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age18_W = df18.loc[:,['Q3','Q2','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q2':'age'}).fillna('etc')

#data 정제(한꺼번에 이름바꾸기)
Age5y_W= pd.concat([Age21_W, Age20_W, Age19_W, Age18_W])
Age5y_W= (Age5y_W.replace(['60-69', '70+', '70-79', '80+'], '60+')
           .replace(['22-24', '25-29'], '22-29')
           .replace(['30-34', '35-39'], '30-39')
            .replace(['40-44', '45-49'], '40-49')
        .replace(['50-54', '55-59'], '50-59')
           .groupby(['year', 'age'])
           .size()
           .reset_index()
           .rename(columns = {0:"Count"}))

#percent data 넣기
Age21_percent_W = Age5y_W[Age5y_W['year'] == "2021"].reset_index(drop = True)
Age21_percent_W['percentage'] = Age21_percent_W["Count"] / Age21_percent_W["Count"].sum()
Age21_percent_W['%'] = np.round(Age21_percent_W['percentage'] * 100, 1)


Age20_percent_W = Age5y_W[Age5y_W['year'] == "2020"].reset_index(drop = True)
Age20_percent_W['percentage'] = Age20_percent_W["Count"] / Age20_percent_W["Count"].sum()
Age20_percent_W['%'] = np.round(Age20_percent_W['percentage'] * 100, 1)


Age19_percent_W = Age5y_W[Age5y_W['year'] == "2019"].reset_index(drop = True)
Age19_percent_W['percentage'] = Age19_percent_W["Count"] / Age19_percent_W["Count"].sum()
Age19_percent_W['%'] = np.round(Age19_percent_W['percentage'] * 100, 1)


Age18_percent_W = Age5y_W[Age5y_W['year'] == "2018"].reset_index(drop = True)
Age18_percent_W['percentage'] = Age18_percent_W["Count"] / Age18_percent_W["Count"].sum()
Age18_percent_W['%'] = np.round(Age18_percent_W['percentage'] * 100, 1)



#data 완성
Age5y_percent_W = pd.concat([Age18_percent_W, Age19_percent_W, Age20_percent_W, Age21_percent_W], ignore_index = True)
Age5y_percent_W= pd.pivot(Age5y_percent_W, index = "year", columns = 'age', values = "%").reset_index()
Age5y_percent_W


#age data 전처리
# age 뽑아오기
Age21 = df21_Ea.loc[:,['Q3','Q1', 'year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age20 = df20_Ea.loc[:,['Q3','Q1','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age19 = df19_Ea.loc[:,['Q3','Q1','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'age'}).fillna('etc')
Age18 = df18_Ea.loc[:,['Q3','Q2','year']].reset_index().rename(columns={'Q3':'East_Asia', 'Q2':'age'}).fillna('etc')

#data 정제(한꺼번에 이름바꾸기)
Age5y= pd.concat([Age21, Age20, Age19, Age18])
Age5y= (Age5y.replace(['60-69', '70+', '70-79', '80+'], '60+')
           .replace(['22-24', '25-29'], '22-29')
           .replace(['30-34', '35-39'], '30-39')
            .replace(['40-44', '45-49'], '40-49')
        .replace(['50-54', '55-59'], '50-59')
           .groupby(['year', 'age'])
           .size()
           .reset_index()
           .rename(columns = {0:"Count"}))

#percent data 넣기
Age21_percent = Age5y[Age5y['year'] == "2021"].reset_index(drop = True)
Age21_percent['percentage'] = Age21_percent["Count"] / Age21_percent["Count"].sum()
Age21_percent['%'] = np.round(Age21_percent['percentage'] * 100, 1)
Age21_percent

Age20_percent = Age5y[Age5y['year'] == "2020"].reset_index(drop = True)
Age20_percent['percentage'] = Age20_percent["Count"] / Age20_percent["Count"].sum()
Age20_percent['%'] = np.round(Age20_percent['percentage'] * 100, 1)
Age20_percent

Age19_percent = Age5y[Age5y['year'] == "2019"].reset_index(drop = True)
Age19_percent['percentage'] = Age19_percent["Count"] / Age19_percent["Count"].sum()
Age19_percent['%'] = np.round(Age19_percent['percentage'] * 100, 1)
Age19_percent

Age18_percent = Age5y[Age5y['year'] == "2018"].reset_index(drop = True)
Age18_percent['percentage'] = Age18_percent["Count"] / Age18_percent["Count"].sum()
Age18_percent['%'] = np.round(Age18_percent['percentage'] * 100, 1)
Age18_percent


#data 완성
Age5y_percent = pd.concat([Age18_percent, Age19_percent, Age20_percent, Age21_percent], ignore_index = True)
Age5y_percent= pd.pivot(Age5y_percent, index = "year", columns = 'age', values = "%").reset_index()
Age5y_percent


Graph 그리기 _1_World

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Age5y_percent_order = Age5y_percent_W['year'].tolist()


Age5y_order = Age5y_W['age'].unique().tolist()

fig = go.Figure()

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['18-21'].tolist(), 
    mode = "lines", 
    name = '18-21',
    line = dict(width = 1),
    stackgroup = "one"
))

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['22-29'].tolist(), 
    mode = "lines", 
    name = "20s",
    line = dict(width = 1),
    stackgroup = "one"
))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['30-39'].tolist(), 
    mode = "lines", 
    name = "30s",
    line = dict(width = 1),
    stackgroup = "one"
))

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['40-49'].tolist(), 
    mode = "lines", 
    name = "40s",
    line = dict(width = 1),
    stackgroup = "one"
))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['50-59'].tolist(), 
    mode = "lines", 
    name = "50s",
    line = dict(width = 1),
    stackgroup = "one"
))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent_W['60+'].tolist(), 
    mode = "lines", 
    name = "60s<",
    line = dict(width = 1),
    stackgroup = "one"
))

fig.update_layout(yaxis_range = (0, 100), height=500, width=600,
                 title_text="<b>in world 나이의 변화</b>",
                 title_x=0.5)

fig.show()

AgePerYears_Inwo

Graph 그리기 _1_in East Asia

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Age5y_percent_order = Age5y_percent['year'].tolist()


Age5y_order = Age5y['age'].unique().tolist()

fig = go.Figure()

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['18-21'].tolist(), 
    mode = "lines", 
    name = '18-21',
    line = dict(width = 1),
    stackgroup = "one"
))

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['22-29'].tolist(), 
    mode = "lines", 
    name = "20s",
    line = dict(width = 1),
    stackgroup = "one"
))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['30-39'].tolist(), 
    mode = "lines", 
    name = "30s",
    line = dict(width = 1),
    stackgroup = "one"
))

fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['40-49'].tolist(), 
    mode = "lines", 
    name = "40s",
    line = dict(width = 1),
    stackgroup = "one"
))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['50-59'].tolist(), 
    mode = "lines", 
    name = "50s",
    line = dict(width = 1),
    stackgroup = "one"
))
fig.add_trace(go.Scatter(
    x = Age5y_percent_order, 
    y = Age5y_percent['60+'].tolist(), 
    mode = "lines", 
    name = "60s<",
    line = dict(width = 1),
    stackgroup = "one"
))

fig.update_layout(yaxis_range = (0, 100), height=500, width=600,
                 title_text="<b>East Asia 나이의 변화</b>",
                 title_x=0.5)

fig.show()

AgePerYears_InEa

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# 연도별 나이 
df21Age_Ea = df21_Ea.loc[:,['Q3','Q1']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'2021'}).fillna('etc')

# 연령-지역 %
dfKo_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='South Korea']
dfKo_Age21_per=dfKo_Age21['2021'].value_counts().to_frame().reset_index()
dfKo_Age21_per['South Korea']=((dfKo_Age21_per['2021'] / len(dfKo_Age21))*100).round(2)

dfTw_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='Taiwan']
dfTw_Age21_per=dfTw_Age21['2021'].value_counts().to_frame().reset_index()
dfTw_Age21_per['Taiwan']=((dfTw_Age21_per['2021'] / len(dfTw_Age21))*100).round(2)
dfTw_Age21_per

dfCh_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='China']
dfCh_Age21_per=dfCh_Age21['2021'].value_counts().to_frame().reset_index()
dfCh_Age21_per['China']=((dfCh_Age21_per['2021'] / len(dfCh_Age21))*100).round(2)
dfCh_Age21_per

df21Age_Ea.head()
dfJp_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='Japan']
dfJp_Age21_per=dfJp_Age21['2021'].value_counts().to_frame().reset_index()
dfJp_Age21_per['Japan']=((dfJp_Age21_per['2021'] / len(dfJp_Age21))*100).round(2)
dfJp_Age21_per



#g 그리기(heatMap)
merge1= pd.merge(dfKo_Age21_per,dfTw_Age21_per, on='index', how='outer')
merge2= pd.merge(dfCh_Age21_per,dfJp_Age21_per, on='index', how='outer')
merge= pd.merge(merge1,merge2, on='index', how='outer').fillna(0).sort_values(by=['index'],ascending=True)

merge.iloc[:,[2,4,6,8]]
merge.iloc[:,[2,4,6,8]].to_numpy()



fig = go.Figure(data=go.Heatmap(
                   z=merge.iloc[:,[2,4,6,8]].to_numpy(),
                   x=['South Korea','Taiwan','China','Japan'],
                   y=merge.sort_values(by=['index'],ascending=True)['index'].tolist(),
                   hoverongaps = False,
                   opacity=1.0, xgap=2.5, ygap=2.5, colorscale='orrd'),
                   )

fig.update_layout( height=500, width=600,
                 title_text="<b>East Asia 나이 2021</b>",
                 title_x=0.5)
fig.show()

HeatMap_Eastandage

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#데이터 전처리
df21_Ea_degree=(df21_Ea['Q4'].replace(['No formal education past high school',
                       'Some college/university study without earning a bachelor’s degree'],'~college')
             .replace(['Doctoral degree',
                       'Professional doctorate'],'Doctoral degree~').value_counts().to_frame().rename(columns={'Q4':'2021'}))
df20_Ea_degree=(df20_Ea['Q4'].replace(['No formal education past high school',
                       'Some college/university study without earning a bachelor’s degree'],'~college')
             .replace(['Doctoral degree',
                       'Professional doctorate'],'Doctoral degree~').value_counts().to_frame().rename(columns={'Q4':'2020'}))
df19_Ea_degree=(df19_Ea['Q4'].replace(['No formal education past high school',
                       'Some college/university study without earning a bachelor’s degree'],'~college')
             .replace(['Doctoral degree',
                       'Professional doctorate'],'Doctoral degree~').value_counts().to_frame().rename(columns={'Q4':'2019'}))
df18_Ea_degree=(df18_Ea['Q4'].replace(['No formal education past high school',
                       'Some college/university study without earning a bachelor’s degree'],'~college')
             .replace(['Doctoral degree',
                       'Professional doctorate'],'Doctoral degree~').value_counts().to_frame().rename(columns={'Q4':'2018'}))
df17_Ea_degree=(df17_Ea['FormalEducation'].replace(['No formal education past high school',
                       'Some college/university study without earning a bachelor’s degree'],'~college')
             .replace(['Doctoral degree',
                       'Professional doctorate'],'Doctoral degree~')
                .value_counts().to_frame()
                .rename(columns={'FormalEducation':'2017'})
                .rename(index = {'I did not complete any formal education past high school':'No formal education past high school'}))

concat1 = pd.concat([df21_Ea_degree,df20_Ea_degree],axis=1, join='outer')  
concat2 = pd.concat([df19_Ea_degree,df18_Ea_degree],axis=1, join='outer')  
concat3 = pd.concat([concat1,concat2],axis=1, join='outer') 

df21_Ea_degree_yearly_=concat3.join(df17_Ea_degree).fillna(0).transpose() #.transpose() 행 열 바꾸기
df21_Ea_degree_yearly=df21_Ea_degree_yearly_.stack().to_frame().reset_index().rename(columns={'level_0':'year','level_1':'degree',0:'value'})
df21_Ea_degree_yearly

#그래프 그리기
fig = px.sunburst(df21_Ea_degree_yearly, path=['year','degree'], values=df21_Ea_degree_yearly['value'].tolist())
fig.show()

piepie_G

 게시 됨 업데이트 됨python - plotly1분안에 읽기 (약 206 단어)

Column 뽑아오기

-python: for문으로 뽑아오기 

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for column in df17_Ea:
...   print(column)

df.coulumns
#이건 column 이름 나옴

Q17_column

경력은 Tenure 인거 같다. 

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df18.loc[:0]

Question을 다 삭제 해 버렸는데

질문 정히 해 놓은 것이 사라지면 어쩔 수 없이 다시 불러와야지

Q17_Question

판다스 옵션

  • pandas 옵션을 조정하여 생략없이 긴 data를 볼 수 있다. 
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pd.describe_option()

PandasOPtion

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pd.set_option('display.max_seq_items', None)
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# row 생략 없이 출력
pd.set_option('display.max_rows', None)
# col 생략 없이 출력
pd.set_option('display.max_columns', None)

경력 : [Tenure] in df17, [Q8] in df18, [Q15] in 19, [Q6] in 20, [Q6]in 21
연봉 : [Q9] in df18, [Q10] in df19, [Q24] in 20, [Q25]in 21
*2017연봉의 경우 ‘CompensationAmount’ 컬럼에 있지만, 통화가 다르므로 하지 말자.

 게시 됨 업데이트 됨python - plotly10분안에 읽기 (약 1562 단어)

kgg compete data 정리

data Import

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import numpy as np
import pandas as pd
import seaborn as sns
import matplotlib.pylab as plt

import plotly.io as pio
import plotly.express as px
import plotly.graph_objects as go
import plotly.figure_factory as ff
from plotly.subplots import make_subplots
from plotly.offline import init_notebook_mode, iplot
init_notebook_mode(connected=True)
pio.templates.default = "none"
# import plotly.offline as py
# py.offline.init_notebook_mode()

import os
for dirname, _, filenames in os.walk('/kaggle/input'):
    for filename in filenames:
        print(os.path.join(dirname, filename))

import warnings
warnings.filterwarnings("ignore")
df17= pd.read_csv("/kaggle/input/kaggle-survey-2017/multipleChoiceResponses.csv", encoding="ISO-8859-1")
df18= pd.read_csv("/kaggle/input/kaggle-survey-2018/multipleChoiceResponses.csv", )
df19= pd.read_csv("/kaggle/input/kaggle-survey-2019/multiple_choice_responses.csv", )
df20= pd.read_csv("/kaggle/input/kaggle-survey-2020/kaggle_survey_2020_responses.csv", )
df21= pd.read_csv("/kaggle/input/kaggle-survey-2021/kaggle_survey_2021_responses.csv", )

질문 뽑는 법

18년도의 질문 frame을 확인 해 보자 .

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questions = df18.iloc[0, :].T
questions

Question

질문 제거하기

이후 data에 질문이 들어가면 안되기 때문에 질문을 제거 해 준다. 

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df17= df17.iloc[1:, :].replace("People 's Republic of China",'China')
df18= df18.iloc[1:, :].replace('Republic of Korea','South Korea')
df19= df19.iloc[1:, :].replace('Republic of Korea','South Korea')
df20= df20.iloc[1:, :].replace('Republic of Korea','South Korea')
df21= df21.iloc[1:, :]

연도 추가하기

이후 연도별 data를 뽑기 위해서 data set에 연도를 추가 해 준다. 

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df21['year'] = '2021'
df20['year'] = '2020'
df19['year'] = '2019'
df18['year'] = '2018'
df17['year'] = '2017'

동아시아와 세계 나누기

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df21['Q1'].unique()

unique

unique_Q3

[Q3]에 나라가 있다.

나라를 확인하여 East Asia만 region column을 새로 만들어 분류 해 준다. 

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EastAsia17 = ['China',"People 's Republic of China", 'Taiwan', 'South Korea', 'Japan']
EastAsia18= ['China', 'South Korea', 'Japan', 'Republic of Korea'] 
EastAsia19 = ['China','Taiwan', 'South Korea', 'Japan', 'Republic of Korea']
EastAsia20 = ['China','Taiwan', 'South Korea','Republic of Korea', 'Japan']
EastAsia21 = ['China','Taiwan', 'South Korea', 'Japan']
EastAsia = ['Republic of Korea','China','Taiwan', 'South Korea', 'Japan', "People 's Republic of China" ]

df21_Ea = df21[df21['Q3'].isin(EastAsia)]
df21_Wo = df21[~df21['Q3'].isin(EastAsia)]
df21['region']=["EastAsia" if x in EastAsia else "World" for x in df21['Q3']]


df20_Ea = df20[df20['Q3'].isin(EastAsia)]
df20_Wo = df20[~df20['Q3'].isin(EastAsia)]
df20['region']=["EastAsia" if x in EastAsia else "World" for x in df20['Q3']]

df19_Ea = df19[df19['Q3'].isin(EastAsia)]
df19_Wo = df19[~df19['Q3'].isin(EastAsia)]
df19['region']=["EastAsia" if x in EastAsia else "World" for x in df19['Q3']]

df18_Ea = df18[df18['Q3'].isin(EastAsia)]
df18_Wo = df18[~df18['Q3'].isin(EastAsia)]
df18['region']=["EastAsia" if x in EastAsia else "World" for x in df18['Q3']]

df17_Ea = df17[df17['Country'].isin(EastAsia)]
df17_Wo = df17[~df17['Country'].isin(EastAsia)]
df17['region']=["EastAsia" if x in EastAsia else "World" for x in df17['Country']]

lng()을 이용하여 % 그래프 그리기

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# 수치 bar g = 사용자 수 비교.

Ea21 = len(df21_Ea)
Wo21 = len(df21) - len(df21_Ea)

Ea20 = len(df20_Ea)
Wo20 = len(df20) - len(df20_Ea)

Ea19 = len(df19_Ea)
Wo19 = len(df19) - len(df19_Ea)

Ea18 = len(df18_Ea)
Wo18 = len(df18) -  len(df18_Ea)

Ea17 = len(df17_Ea)
Wo17 = len(df17) - len(df17_Ea)

years = ['2017','2018','2019','2020', '2021']

def percent (a, b):
    result =a/(a+b)*100
    result = np.round(result)
    return result

def percentR (b, a):
    result =a/(a+b)*100
    result = np.round(result)
    return result

percent = [percent(Ea17, Wo17), percent(Ea18, Wo18), percent(Ea19, Wo19), 
                                                 percent(Ea20, Wo20), percent(Ea21, Wo21)]

# percentR = [percentR(Ea17, Wo17), percentR(Ea18, Wo18), percentR(Ea19, Wo19), 
#                                                  percentR(Ea20, Wo20), percentR(Ea21, Wo21)]
fig = go.Figure()
fig.add_trace(go.Bar(x=years, y=[len(df17), len(df18), len(df19), len(df20), len(df21)],
                base=[-len(df17), -len(df18), -len(df19), -len(df20), -len(df21)],
                marker_color='#88BFBA',
                name='World'
                ))
fig.add_trace(go.Bar(x=years, y=[Ea17, Ea18, Ea19, Ea20, Ea21],
                base=0,
                marker_color='#D9946C',
                name='East Asia',
                text= percent,
                texttemplate='%{text}  %', 
                  textposition='outside',
                  hovertemplate='<b>KaggleUser</b>: %{x}<br>'+
                                '<b>Count</b>: %{y}',
                  textfont_size=14
                ))

fig.show()

다음과 같은 G가 그려 진다.

EastAsia_Kggcount

East asia와 world비교 _ kgg 사용자수

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#data 정제하기
total17 = (
    df17['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total18 = (
    df18['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total19 = (
    df19['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total20 = (
    df20['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total21 = (
    df21['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)

colors = ['#88BFBA','#F28705']


# Create subplots: use 'domain' type for Pie subplot
fig = make_subplots(rows=1, cols=5, specs=[[{'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}]],
                   subplot_titles=("2017", "2018", "2019", "2020", "2021"))
fig.add_trace(go.Pie(marker=dict(colors=colors),labels=total21['type'], values=total21['respodents'], name="2021", scalegroup='one'),
              1, 1)
fig.add_trace(go.Pie(marker=dict(colors=colors),labels=total20['type'], values=total20['respodents'], name="2020", scalegroup='one'),
              1, 2)
fig.add_trace(go.Pie(marker=dict(colors=colors),labels=total19['type'], values=total19['respodents'], name="2019", scalegroup='one'),
              1, 3)
fig.add_trace(go.Pie(marker=dict(colors=colors),labels=total18['type'], values=total18['respodents'], name="2018", scalegroup='one'),
              1, 4)
fig.add_trace(go.Pie(marker=dict(colors=colors),labels=total17['type'], values=total17['respodents'], name="2017", scalegroup='one'),
              1, 5)

# Use `hole` to create a donut-like pie chart
fig.update_traces(hole=.0, hoverinfo="label+percent+name", 
                  textfont_size=15,)

fig.update_layout(showlegend=False,
                 margin=dict(pad=20),
                 height=100,
                 yaxis_title=None,
                 xaxis_title=None,
                 title_text="<b>World vs EastAsia</b>",
                 title_font_size=22,
                 font=dict(size=17, color='#000000'),
                 autosize=True)

fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)

fig.show()

subplot을 이용하여 원그래프 5개를 한꺼번에 묶어서 출력 할 수 있다.

Subplot_pie5

World map그리기

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def world_map(locations,counts,title):
    data = [ dict(
            type = 'choropleth',
            locations = locations,
            z = counts,
            colorscale = 'Blues',
            locationmode = 'country names',
            autocolorscale = False,
            reversescale = True,
            marker = dict(
                line = dict(color = '#F7F7F7', width = 1.5)),
                colorbar = dict(autotick = True, legth = 3, len=0.75, title = 'respodents',
                               max = 1000, min = 0)
                )
           ]
    layout = dict(
        title = title,
        titlefont={'size': 28, 'family': 'san serif'},
        width=750, 
        height=475,
        paper_bgcolor='#F7F7F7',
        geo = dict(
            showframe = True,
            showcoastlines = True,
            fitbounds="locations",
            )
    )
    
    fig = dict(data=data, layout=layout)
    iplot(fig, validate=False, filename='world-map')
    
z = df21_Ea['Q3'].value_counts()
 
## 메서드 호출
world_map(locations=z.index, counts=z.values, title= '<b> EastAsia Countries (2021 survey) <b>')

WorldMap_EastAsia_

bar mode를 stack으로 하여 G를 그릴 수 있다.

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years = ['2017', '2018', '2019', '2020', '2021']

df21_Ea = df21[df21['Q3'].isin(EastAsia21)]
Ea21= (
    df21_Ea['Q3'].value_counts().to_frame()
    .reset_index().rename(columns={'index':'Country', 'Q3':'21'}))

df20_Ea=df20[df20['Q3'].isin(EastAsia)]
Ea20= (
    df20_Ea['Q3'].replace('Republic of Korea','South Korea')
    .value_counts().to_frame().reset_index()
    .rename(columns={'index':'Country', 'Q3':'20'}))

df19_Ea=df19[df19['Q3'].isin(EastAsia)]
Ea19= (df19_Ea['Q3'].replace('Republic of Korea','South Korea')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Q3':'19'}))

df18_Ea=df18[df18['Q3'].isin(EastAsia)]
Ea18= (df18_Ea['Q3'].replace('Republic of Korea','South Korea')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Q3':'18'}))
Ea18.value_counts()
#df18 열에 taiwan = 0을 추가 해야 합니다. 

df17_Ea = df17[df17['Country'].isin(EastAsia)]
Ea17= (df17_Ea['Country'].replace("People 's Republic of China",'China')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Country':'17'}))

#data를 합쳐서 하나의 dataframe으로 만들어 줌.
df5years = pd.merge(Ea17, Ea18, on='Country', how='outer')
df5year =pd.merge(Ea19,Ea20, on='Country', how='outer')
df5year=pd.merge(df5year, Ea21, on='Country', how='outer')

df5years = pd.merge(df5years, df5year, on='Country', how='outer')

fig = go.Figure(data=[
    go.Bar(name='2017', x=df5years['Country'], y=df5years['17']),
    go.Bar(name='2018', x=df5years['Country'], y=df5years['18']),
    go.Bar(name='2019', x=df5years['Country'], y=df5years['19']),
    go.Bar(name='2020', x=df5years['Country'], y=df5years['20']),
    go.Bar(name='2021', x=df5years['Country'], y=df5years['21'])
])

fig.update_layout(barmode='stack',
                 showlegend=True,
                 margin=dict(pad=20),
                 height=500,
                 yaxis_title=None,
                 xaxis_title=None,
                 title_text="<b>연도별 동아시아 Kaggle 사용자수</b>",
                 title_x=0.5,
                 font=dict(size=17, color='#000000'),
                 title_font_size=35)
fig.update_xaxes(showgrid=False)
fig.update_yaxes(showgrid=False)

fig.show()

# Text : percent

오늘은 여기까지 정리

 게시 됨 업데이트 됨python - plotly한 시간안에 읽기 (약 7252 단어)

kaggle HeatMap

Kaggle 을 쓰는 East Asia의 사람들

  • Kaggle 정의
  • Kaggle 설문조사_개요
  • 그런데 우리는 EA에살아서 궁긍한 걸 찾아보자.

data import

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import numpy as np
import pandas as pd
import seaborn as sns
import matplotlib.pylab as plt

import plotly.io as pio
import plotly.express as px
import plotly.graph_objects as go
import plotly.figure_factory as ff
from plotly.subplots import make_subplots
from plotly.offline import init_notebook_mode, iplot
init_notebook_mode(connected=True)
pio.templates.default = "none"
# import plotly.offline as py
# py.offline.init_notebook_mode()

import os
for dirname, _, filenames in os.walk('/kaggle/input'):
    for filename in filenames:
        print(os.path.join(dirname, filename))

import warnings
warnings.filterwarnings("ignore")
/kaggle/input/kaggle-survey-2018/SurveySchema.csv
/kaggle/input/kaggle-survey-2018/freeFormResponses.csv
/kaggle/input/kaggle-survey-2018/multipleChoiceResponses.csv
/kaggle/input/kaggle-survey-2020/kaggle_survey_2020_responses.csv
/kaggle/input/kaggle-survey-2020/supplementary_data/kaggle_survey_2020_methodology.pdf
/kaggle/input/kaggle-survey-2020/supplementary_data/kaggle_survey_2020_answer_choices.pdf
/kaggle/input/kaggle-survey-2021/kaggle_survey_2021_responses.csv
/kaggle/input/kaggle-survey-2021/supplementary_data/kaggle_survey_2021_methodology.pdf
/kaggle/input/kaggle-survey-2021/supplementary_data/kaggle_survey_2021_answer_choices.pdf
/kaggle/input/kaggle-survey-2019/survey_schema.csv
/kaggle/input/kaggle-survey-2019/multiple_choice_responses.csv
/kaggle/input/kaggle-survey-2019/other_text_responses.csv
/kaggle/input/kaggle-survey-2019/questions_only.csv
/kaggle/input/kaggle-survey-2017/freeformResponses.csv
/kaggle/input/kaggle-survey-2017/schema.csv
/kaggle/input/kaggle-survey-2017/RespondentTypeREADME.txt
/kaggle/input/kaggle-survey-2017/multipleChoiceResponses.csv
/kaggle/input/kaggle-survey-2017/conversionRates.csv

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df17= pd.read_csv("/kaggle/input/kaggle-survey-2017/multipleChoiceResponses.csv", encoding="ISO-8859-1")
df18= pd.read_csv("/kaggle/input/kaggle-survey-2018/multipleChoiceResponses.csv", )
df19= pd.read_csv("/kaggle/input/kaggle-survey-2019/multiple_choice_responses.csv", )
df20= pd.read_csv("/kaggle/input/kaggle-survey-2020/kaggle_survey_2020_responses.csv", )
df21= pd.read_csv("/kaggle/input/kaggle-survey-2021/kaggle_survey_2021_responses.csv", )

EastAsia VS World

1. data 전처리

1.1 EastAsia / World 나누기

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#질문 제거하기, replace
df17= df17.iloc[1:, :].replace("People 's Republic of China",'China')
df18= df18.iloc[1:, :].replace('Republic of Korea','South Korea')
df19= df19.iloc[1:, :].replace('Republic of Korea','South Korea')
df20= df20.iloc[1:, :].replace('Republic of Korea','South Korea')
df21= df21.iloc[1:, :]


## East Asia에는 대한민국, 일본, 중국, 타이완, 몽골, 북조선 총 6개의 국가가 속해 있다. 
## 알 수 없지만, 18년도엔 타이완이 없다. 

EastAsia17 = ['China',"People 's Republic of China", 'Taiwan', 'South Korea', 'Japan']
EastAsia18= ['China', 'South Korea', 'Japan', 'Republic of Korea'] 
EastAsia19 = ['China','Taiwan', 'South Korea', 'Japan', 'Republic of Korea']
EastAsia20 = ['China','Taiwan', 'South Korea','Republic of Korea', 'Japan']
EastAsia21 = ['China','Taiwan', 'South Korea', 'Japan']

EastAsia = ['Republic of Korea','China','Taiwan', 'South Korea', 'Japan', "People 's Republic of China" ]

years = ['2017', '2018', '2019', '2020', '2021']

#East Asia 뽑기
df21_Ea = df21[df21['Q3'].isin(EastAsia)]
df21_Wo = df21[~df21['Q3'].isin(EastAsia)]
df21['region']=["EastAsia" if x in EastAsia else "World" for x in df21['Q3']]


df20_Ea = df20[df20['Q3'].isin(EastAsia)]
df20_Wo = df20[~df20['Q3'].isin(EastAsia)]
df20['region']=["EastAsia" if x in EastAsia else "World" for x in df20['Q3']]

df19_Ea = df19[df19['Q3'].isin(EastAsia)]
df19_Wo = df19[~df19['Q3'].isin(EastAsia)]
df19['region']=["EastAsia" if x in EastAsia else "World" for x in df19['Q3']]

df18_Ea = df18[df18['Q3'].isin(EastAsia)]
df18_Wo = df18[~df18['Q3'].isin(EastAsia)]
df18['region']=["EastAsia" if x in EastAsia else "World" for x in df18['Q3']]

df17_Ea = df17[df17['Country'].isin(EastAsia)]
df17_Wo = df17[~df17['Country'].isin(EastAsia)]
df17['region']=["EastAsia" if x in EastAsia else "World" for x in df17['Country']]

#df21['region'].to_frame().value_counts().to_frame().rename(columns={'region': '21y', '' : 'count'})
print('OK')
OK

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# 나라별 data 뽑기
df21_Ch= df21_Ea[df21_Ea['Q3'] == 'China']
df21_Tw= df21_Ea[df21_Ea['Q3'] == 'South Korea']
df21_Ko= df21_Ea[df21_Ea['Q3'] == 'Taiwan']
df21_Jp= df21_Ea[df21_Ea['Q3'] == 'Japan']

df20_Ch= df20_Ea[df20_Ea['Q3'] == 'China']
df20_Tw= df20_Ea[df20_Ea['Q3'] == 'South Korea']
df20_Ko= df20_Ea[df20_Ea['Q3'] == 'Taiwan']
df20_Jp= df20_Ea[df20_Ea['Q3'] == 'Japan']

df19_Ch= df19_Ea[df19_Ea['Q3'] == 'China']
df19_Tw= df19_Ea[df19_Ea['Q3'] == 'South Korea']
df19_Ko= df19_Ea[df19_Ea['Q3'] == 'Taiwan']
df19_Jp= df19_Ea[df19_Ea['Q3'] == 'Japan']

df18_Ch= df18_Ea[df18_Ea['Q3'] == 'China']
df18_Tw= df18_Ea[df18_Ea['Q3'] == 'South Korea']
df18_Jp= df18_Ea[df18_Ea['Q3'] == 'Japan']

df17_Ch= df17_Ea[df17_Ea['Country'] == 'China']
df17_Tw= df17_Ea[df17_Ea['Country'] == 'South Korea']
df17_Ko= df17_Ea[df17_Ea['Country'] == 'Taiwan']
df17_Jp= df17_Ea[df17_Ea['Country'] == 'Japan']

2. Kaggle 사용자수 (W/Ea)

2.1 data 전처리

2.2 그래프 그리기

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def world_map(locations,counts,title):
    data = [ dict(
            type = 'choropleth',
            locations = locations,
            z = counts,
            colorscale = 'Blues',
            locationmode = 'country names',
            autocolorscale = False,
            reversescale = True,
            marker = dict(
                line = dict(color = '#F7F7F7', width = 1.5)),
                colorbar = dict(autotick = True, legth = 3, len=0.75, title = 'respodents',
                               max = 1000, min = 0)
                )
           ]
    layout = dict(
        title = title,
        titlefont={'size': 28, 'family': 'san serif'},
        width=750, 
        height=475,
        paper_bgcolor='#F7F7F7',
        geo = dict(
            showframe = True,
            showcoastlines = True,
            fitbounds="locations",
            )
    )
    
    fig = dict(data=data, layout=layout)
    iplot(fig, validate=False, filename='world-map')
    
z = df21_Ea['Q3'].value_counts()
 
## 메서드 호출
world_map(locations=z.index, counts=z.values, title= '<b> EastAsia Countries (2021 survey) <b>')
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# 수치 bar g = 사용자 수 비교.

Ea21 = len(df21_Ea)
Wo21 = len(df21) - len(df21_Ea)

Ea20 = len(df20_Ea)
Wo20 = len(df20) - len(df20_Ea)

Ea19 = len(df19_Ea)
Wo19 = len(df19) - len(df19_Ea)

Ea18 = len(df18_Ea)
Wo18 = len(df18) -  len(df18_Ea)

Ea17 = len(df17_Ea)
Wo17 = len(df17) - len(df17_Ea)

years = ['2017','2018','2019','2020', '2021']

def percent (a, b):
    result =a/(a+b)*100
    result = np.round(result)
    return result

def percentR (b, a):
    result =a/(a+b)*100
    result = np.round(result)
    return result

percent = [percent(Ea17, Wo17), percent(Ea18, Wo18), percent(Ea19, Wo19), 
                                                 percent(Ea20, Wo20), percent(Ea21, Wo21)]

# percentR = [percentR(Ea17, Wo17), percentR(Ea18, Wo18), percentR(Ea19, Wo19), 
#                                                  percentR(Ea20, Wo20), percentR(Ea21, Wo21)]
fig = go.Figure()
fig.add_trace(go.Bar(x=years, y=[len(df17), len(df18), len(df19), len(df20), len(df21)],
                base=[-len(df17), -len(df18), -len(df19), -len(df20), -len(df21)],
                marker_color='lightslategrey',
                name='World',
                textposition='outside',
                hovertemplate='<b>KaggleUser</b>: %{x}<br>'+
                                '<b>Count</b>: %{y}'
                
                ))
fig.add_trace(go.Bar(x=years, y=[Ea17, Ea18, Ea19, Ea20, Ea21],
                base=0,
                marker_color='pink',
                name='East Asia',
                text= percent,
                texttemplate='%{text}  %', 
                textposition='outside',
                hovertemplate='<b>KaggleUser</b>: %{x}<br>'+
                                '<b>Count</b>: %{y}',
                textfont_size=12                
                ))
fig.update_layout(width=600, height=700)
fig.show()
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from plotly.subplots import make_subplots
import plotly.graph_objects as go

total17 = (
    df17['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total18 = (
    df18['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total19 = (
    df19['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total20 = (
    df20['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)
total21 = (
    df21['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index()
)



# Create subplots: use 'domain' type for Pie subplot
fig = make_subplots(rows=1, cols=5, specs=[[{'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}]],
                   subplot_titles=("2017", "2018", "2019", "2020", "2021"))
fig.add_trace(go.Pie(labels=total21['type'], values=total21['respodents'], name="2021", scalegroup='one'),
              1, 1)
fig.add_trace(go.Pie(labels=total20['type'], values=total20['respodents'], name="2020", scalegroup='one'),
              1, 2)
fig.add_trace(go.Pie(labels=total19['type'], values=total19['respodents'], name="2019", scalegroup='one'),
              1, 3)
fig.add_trace(go.Pie(labels=total18['type'], values=total18['respodents'], name="2018", scalegroup='one'),
              1, 4)
fig.add_trace(go.Pie(labels=total17['type'], values=total17['respodents'], name="2017", scalegroup='one'),
              1, 5)

# Use `hole` to create a donut-like pie chart
fig.update_traces(hole=.2, hoverinfo="label+percent+name")
fig.update_layout(
    title_text="<b>World vs EastAsia</b>",
    # Add annotations in the center of the donut pies.
   )
fig.show()

가설은 시간에따라서 응답자수가 증가 할 줄 알았는데 결과를 보니 오히려 감소하는 경향을 볼 수 있다.

East Asia 응답자는 2020년도(10.5%)에 가장 많았고 2121년도(7.15%)로 가장 적엇다.

0. Kaggle Gender (in Ea)

0.1 data 전처리

0.2 그래프 그리기

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df21_Ea=df21[df21['Q3'].isin(EastAsia21)]
Ea21= (
    df21_Ea['Q3'].value_counts().to_frame()
    .reset_index().rename(columns={'index':'Country', 'Q3':'21'}))


df20_Ea=df20[df20['Q3'].isin(EastAsia)]
Ea20= (
    df20_Ea['Q3'].replace('Republic of Korea','South Korea')
    .value_counts().to_frame().reset_index()
    .rename(columns={'index':'Country', 'Q3':'20'}))


df19_Ea=df19[df19['Q3'].isin(EastAsia)]
Ea19= (df19_Ea['Q3'].replace('Republic of Korea','South Korea')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Q3':'19'}))


df18_Ea=df18[df18['Q3'].isin(EastAsia)]
Ea18= (df18_Ea['Q3'].replace('Republic of Korea','South Korea')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Q3':'18'}))
Ea18.value_counts()
#df18 열에 taiwan = 0을 추가 해야 합니다. 


df17_Ea = df17[df17['Country'].isin(EastAsia)]
Ea17= (df17_Ea['Country'].replace("People 's Republic of China",'China')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Country':'17'}))

#data를 합쳐서 하나의 dataframe으로 만들어 줌.

df5years = pd.merge(Ea17, Ea18, on='Country', how='outer')
df5year =pd.merge(Ea19,Ea20, on='Country', how='outer')
df5year=pd.merge(df5year, Ea21, on='Country', how='outer')

df5years = pd.merge(df5years, df5year, on='Country', how='outer')





fig = go.Figure(data=[
    go.Bar(name='2017', x=df5years['Country'], y=df5years['17']),
    go.Bar(name='2018', x=df5years['Country'], y=df5years['18']),
    go.Bar(name='2019', x=df5years['Country'], y=df5years['19']),
    go.Bar(name='2020', x=df5years['Country'], y=df5years['20']),
    go.Bar(name='2021', x=df5years['Country'], y=df5years['21'])
])

#Change the bar mode
fig.update_layout(barmode='stack', title='연도별 동아시아 Kaggle 사용자수'
                  )
fig.show()



# Text : percent

5년간 china의 Kaggle 응답자 수가 가장 많았다. taiwan이 가장 적지만, 2018년도에 어떤이유인지 모르겠지만, china로 결과 값이 흡수 된 것 같다.

south korea나 Taiwan의 응답자수는 china의 절반에 미치지 못한다.

  • 인구수 대비 몇 % 가 많다.

3. Kaggle Gender (W/Ea)

3.1 data 전처리

3.2 그래프 그리기

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Gender_17 = (
    df17['GenderSelect']
    .replace(['A different identity', 'Prefer to self-describe', 'Non-binary, genderqueer, or gender non-conforming'], 'Others')
    .fillna('Others')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'GenderSelect':'Gender'})
    .groupby('type')
    .sum()
    .reset_index()
)
Gender_18 = (
    df18['Q1']
    .replace(['Prefer not to say', 'Prefer to self-describe'], 'Others')
    .fillna('Others')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Q1':'Gender'})
    .groupby('type')
    .sum()
    .reset_index()
)
Gender_19 = (
    df19['Q2']
    .replace(['Prefer not to say','Prefer to self-describe'],'Others')
    .fillna('Others')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Q2':'Gender'})
    .groupby('type')
    .sum()
    .reset_index()
)
Gender_20 = (
    df20['Q2']
    .replace(['Prefer not to say', 'Prefer to self-describe', 'Nonbinary'], 'Others')
    .replace(['Man', 'Woman'], ['Male', 'Female'])
    .fillna('Others')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Q2':'Gender'})
    .groupby('type')
    .sum()
    .reset_index()
)
Gender_21 = (
    df21['Q2']
    .replace(['Prefer not to say', 'Prefer to self-describe', 'Nonbinary'], 'Others')
    .replace(['Man', 'Woman'], ['Male', 'Female'])
    .fillna('Others')
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'Q2':'Gender'})
    .groupby('type')
    .sum()
    .reset_index()
)

# Create subplots: use 'domain' type for Pie subplot
fig = make_subplots(rows=1, cols=5, specs=[[{'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}]],
                   subplot_titles=("2017", "2018", "2019", "2020", "2021"))
fig.add_trace(go.Pie(labels=Gender_21['type'], values=Gender_21['Gender'], name="2021", scalegroup='one'),
              1, 5)
fig.add_trace(go.Pie(labels=Gender_20['type'], values=Gender_20['Gender'], name="2020", scalegroup='one'),
              1, 4)
fig.add_trace(go.Pie(labels=Gender_19['type'], values=Gender_19['Gender'], name="2019", scalegroup='one'),
              1, 3)
fig.add_trace(go.Pie(labels=Gender_18['type'], values=Gender_18['Gender'], name="2018", scalegroup='one'),
              1, 2)
fig.add_trace(go.Pie(labels=Gender_17['type'], values=Gender_17['Gender'], name="2017", scalegroup='one'),
              1, 1)

# Use `hole` to create a donut-like pie chart
fig.update_traces(hole=.2, hoverinfo="label+percent+name")
fig.update_layout(
    title_text="<b>World_Gender</b>",
    # Add annotations in the center of the donut pies.
   )
fig.show()

연도별, 지역별로 보았을때, 여성의 비율이 20% 미만으로 적은 것을 알 수 있다.

2019년 이전보다 2020년 이후가 증가 했다. (16%-> 19%)

0. Kaggle job (W/Ea)

0.1 data 전처리

0.2 그래프 그리기

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#data 확인
Data_Analyst =['Data Analyst','Data Miner,Information technology','Data Miner',
               'Predictive Modeler','Information technology, networking, or system administration', 
              'A business discipline (accounting, economics, finance, etc.)', 'Business Analyst', 'Humanities',
                'Statistician', 'Mathematics or statistics', 'Medical or life sciences (biology, chemistry, medicine, etc.)', 
                'Physics or astronomy', 'Research Scientist', 'Researcher', 'Social sciences (anthropology, psychology, sociology, etc.)', 
                'Humanities (history, literature, philosophy, etc.)']
Data_Scientist =['Data Scientist', 'Environmental science or geology', 
                'Machine Learning Engineer', 'Scientist/Researcher']
Developer=['Developer Relations/Advocacy','Data Engineer','Engineer','Engineering (non-computer focused)',
           'Programmer','Software Engineer', 'Computer Scientist','Computer science (software engineering, etc.)', 
           'Fine arts or performing arts','Product Manager', 'Software Developer/Software Engineer',
           'Product/Project Manager','Program/Project Manager','DBA/Database Engineer']
Not_Employeed =['Currently not employed', 'Not employed', 'Student']
Others = ['I never declared a major', 'Other']


#연도별로 뽑은 나라별 직업.
df21job_Ea = df21_Ea.loc[:,['Q3','Q5']].reset_index().rename(columns={'index':'job', 'Q5':'2021'}).fillna('Other')
df20job_Ea = df20_Ea.loc[:,['Q3','Q5']].reset_index().rename(columns={'index':'job', 'Q5':'2020'}).fillna('Other')
df19job_Ea = df19_Ea.loc[:,['Q3','Q5']].reset_index().rename(columns={'index':'job', 'Q5':'2019'}).fillna('Other')
df18job_Ea = df18_Ea.loc[:,['Q3','Q5']].reset_index().rename(columns={'index':'job', 'Q5':'2018'}).fillna('Other')
df17job_Ea = df17_Ea.loc[:,['Country','CurrentJobTitleSelect']].reset_index().rename(columns={'index':'job', 'CurrentJobTitleSelect':'2017'}).fillna('Other')

# 연도별 job Grouping in east asia

df21job_Ea.value_counts('2021')
df21job_Ea['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist # Data Scientist
                   else "Data Engineer" if x in Developer
                    else "NotEmployeed" if x in Not_Employeed
                   else "Others" 
                   for x in df21job_Ea['2021']]
df21job_Ea.value_counts('JOB')

df20job_Ea.value_counts('2020')
df20job_Ea['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Data Engineer" if x in Developer
                    else "NotEmployeed" if x in Not_Employeed
                   else "Other"
                   for x in df20job_Ea['2020']]
df20job_Ea[['2020','JOB']]

df19job_Ea.value_counts('2019')
df19job_Ea['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Data Engineer" if x in Developer
                    else "NotEmployeed" if x in Not_Employeed
                    else "Other"
                   for x in df19job_Ea['2019']]


#2019 data에   "Other" grouping이 제대로 이루어 졌는지 확인 
df19jobTest = df19job_Ea.loc[df19job_Ea.JOB == 'Other']
df19jobTest['2019'].value_counts()


df18job_Ea.value_counts('2018')
df18job_Ea['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Data Engineer" if x in Developer
                    else "NotEmployeed" if x in Not_Employeed
                    else "Other"
                   for x in df18job_Ea['2018']]

df18jobTest = df18job_Ea.loc[df18job_Ea.JOB == 'Other']
df18jobTest['2018'].value_counts()


df17job_Ea.value_counts('2017')
df17job_Ea['JOB']=["Data Analyst" if x in Data_Analyst
                   else "Data Scientist" if x in Data_Scientist 
                   else "Data Engineer" if x in Developer
                    else "NotEmployeed" if x in Not_Employeed
                    else "Other"
                   for x in df17job_Ea['2017']]

df17jobTest = df17job_Ea.loc[df17job_Ea.JOB == 'Other']
df17jobTest['2017'].value_counts()


df21jobTest = df21job_Ea.loc[df21job_Ea.JOB == 'Other']
df21jobTest['2021'].head()
df21job_Ea.value_counts('JOB')

#data frame 정리
dfjob21 =df21job_Ea.groupby(['Q3','JOB']).size().reset_index().rename(columns = {0:"Count"}).rename(columns={'Q3':'country', 'JOB':'2021'})
dfjob20 =df20job_Ea.groupby(['Q3','JOB']).size().reset_index().rename(columns = {0:"Count"}).rename(columns={'Q3':'country', 'JOB':'2020'})
dfjob19 =df19job_Ea.groupby(['Q3','JOB']).size().reset_index().rename(columns = {0:"Count"}).rename(columns={'Q3':'country', 'JOB':'2019'})
dfjob18 =df18job_Ea.groupby(['Q3','JOB']).size().reset_index().rename(columns = {0:"Count"}).rename(columns={'Q3':'country', 'JOB':'2018'})
dfjob17 =df17job_Ea.groupby(['Country','JOB']).size().reset_index().rename(columns = {0:"Count"}).rename(columns={'Country':'country', 'JOB':'2017'})

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#21년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfjob21.groupby('country'):
   fig.add_trace(go.Bar(
       x = group['2021'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2021_나라별 직업 수',
                 width=700,
                 height=450
                 )
fig.show()

#20년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfjob20.groupby('country'):
   fig.add_trace(go.Bar(
       x = group['2020'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2020_나라별 직업 수',
                 width=700,
                 height=450)

fig.show()

#19년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfjob19.groupby('country'):
   fig.add_trace(go.Bar(
       x = group['2019'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2019_나라별 직업 수',
                 width=700,
                 height=450
                 )

fig.show()

#18년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfjob18.groupby('country'):
   fig.add_trace(go.Bar(
       x = group['2018'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2018_나라별 직업 수', width=700,
                 height=450
                 )
fig.show()


#17년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfjob17.groupby('country'):
   fig.add_trace(go.Bar(
       x = group['2017'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2017_나라별 직업 수',
                 width=700,
                 height=450
                 )
fig.show()

0. Kaggle age & Edu (W/Ea)

0.1 data 전처리

0.2 그래프 그리기

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# 연도별 나이 
df21Age_Ea = df21_Ea.loc[:,['Q3','Q1']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'2021'}).fillna('etc')
df20Age_Ea = df20_Ea.loc[:,['Q3','Q1']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'2020'}).fillna('etc')
df19Age_Ea = df19_Ea.loc[:,['Q3','Q1']].reset_index().rename(columns={'Q3':'East_Asia', 'Q1':'2019'}).fillna('etc')
df18Age_Ea = df18_Ea.loc[:,['Q3','Q2']].reset_index().rename(columns={'Q3':'East_Asia', 'Q2':'2018'}).fillna('etc')
df17Age_Ea = df17_Ea.loc[:,['Country','Age']].reset_index().rename(columns={'Country':'East_Asia', 'Age':'2017'}).fillna('etc')

#data frame 정리
dfAge21 =df21Age_Ea.groupby(['East_Asia','2021']).size().reset_index().rename(columns = {0:"Count"})
dfAge20 =df20Age_Ea.groupby(['East_Asia','2020']).size().reset_index().rename(columns = {0:"Count"})
dfAge19 =df19Age_Ea.groupby(['East_Asia','2019']).size().reset_index().rename(columns = {0:"Count"})
dfAge18 =df18Age_Ea.groupby(['East_Asia','2018']).size().reset_index().rename(columns = {0:"Count"})
dfAge17 =(df17Age_Ea.groupby(['East_Asia','2017'])
          .size().reset_index().rename(columns = {0:"Count"}))

#2017data
# array([16.0, 18.0, 19.0, 20.0, 21.0, 22.0, 23.0, 24.0, 25.0, 26.0, 27.0,
#        28.0, 29.0, 30.0, 31.0, 32.0, 33.0, 34.0, 35.0, 36.0, 37.0, 38.0,
#        39.0, 40.0, 41.0, 42.0, 43.0, 44.0, 45.0, 47.0, 50.0, 54.0, 100.0,
#        'etc', 46.0, 48.0, 49.0, 51.0, 52.0, 53.0, 55.0, 57.0, 58.0, 59.0,
#        62.0, 64.0, 65.0, 67.0, 68.0, 70.0, 17.0, 56.0, 60.0], dtype=object)


#21년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfAge21.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2021'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2021_나라별 연령')
fig.show()

#20년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfAge20.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2020'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2020_나라별 연령')

fig.show()

#19년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfAge19.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2019'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2019_나라별 연령')

fig.show()


#18년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfAge18.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2018'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2018_나라별 연령')

fig.show()


#17년도 Bar graph 그리기_ Scatter 로 변경
fig = go.Figure()

for country, group  in dfAge17.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2017'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2017_나라별 연령')

fig.show()


0.2 Kaggle age (Ea)

0.1.1 data 전처리

0.2.1 그래프 그리기

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#data frame 정리

dfAge21_percent =df21Age_Ea.groupby(['East_Asia','2021']).size().reset_index().rename(columns = {0:"Count"})
dfAge21_percent['percent'] =((dfAge21_percent['Count'] / len(df21Age_Ea))*100).round(2)
dfAge21_percent['percent_str'] =((dfAge21_percent['Count'] / len(df21Age_Ea))*100).round(2).astype(str) + '%'
# dfAge21['percent'] = ((media['Count'] / len(df))*100).round(2).astype(str) + '%'
# dfAge_percent21=dfAge21.value_counts('East_Asia',normalize=True).mul(100).round(1).astype(str)
dfAge21_percent


# 나라별 연령대 비율 in East Asia
fig = go.Figure()
for country, group  in dfAge21_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2021'], y = group['percent'], name = country, text=group['percent_str']
   ))
fig.update_layout(barmode="stack",
                 plot_bgcolor = "white",
                 title='2021_ 연령별 나라 비율 in East Asia')
fig.show()


# 연령별 나라 비율 in East Asia // 다중 pie 그래프로 바꾸기 
fig = go.Figure()

for country, group  in dfAge21_percent.groupby('2021'):
   fig.add_trace(go.Bar(
       x = group['East_Asia'], y =group['percent'], text=dfAge21_percent['percent_str']
   ))
fig.update_layout(barmode="stack",
                 plot_bgcolor = "white",
                 title='2021_ 나라별 연령 비율 in East Asia')
fig.show()

연도별 연령

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# 나라별로 연도가 나왓으면 좋겠어요 .

z = df21Age_Ea.groupby(['East_Asia', '2021']).size().unstack().fillna(0).astype('int64')
z_data = z.apply(lambda x:np.round(x/x.sum(), 2), axis = 1).to_numpy() # convert to correlation matrix
x = z.columns.tolist()
y = z.index.tolist()

fig21 = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")

z = df20Age_Ea.groupby(['East_Asia', '2020']).size().unstack().fillna(0).astype('int64')
z_data = z.apply(lambda x:np.round(x/x.sum(), 2), axis = 1).to_numpy() # convert to correlation matrix
x = z.columns.tolist()
y = z.index.tolist()

fig20 = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")


z = df19Age_Ea.groupby(['East_Asia', '2019']).size().unstack().fillna(0).astype('int64')
z_data = z.apply(lambda x:np.round(x/x.sum(), 2), axis = 1).to_numpy() # convert to correlation matrix
x = z.columns.tolist()
y = z.index.tolist()

fig19 = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")


z = df18Age_Ea.groupby(['East_Asia', '2018']).size().unstack().fillna(0).astype('int64')
z_data = z.apply(lambda x:np.round(x/x.sum(), 2), axis = 1).to_numpy() # convert to correlation matrix
x = z.columns.tolist()
y = z.index.tolist()

fig18 = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")


z = df17Age_Ea.groupby(['East_Asia', '2017']).size().unstack().fillna(0).astype('int64')
z_data = z.apply(lambda x:np.round(x/x.sum(), 2), axis = 1).to_numpy() # convert to correlation matrix
x = z.columns.tolist()
y = z.index.tolist()

fig17 = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")



fig21.show()
fig20.show()
fig19.show()
fig18.show()

연령별 지역

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# 연령-지역 %
dfKo_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='South Korea']
dfKo_Age21_per=dfKo_Age21['2021'].value_counts().to_frame().reset_index()
dfKo_Age21_per['South Korea']=((dfKo_Age21_per['2021'] / len(dfKo_Age21))*100).round(2)

dfTw_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='Taiwan']
dfTw_Age21_per=dfTw_Age21['2021'].value_counts().to_frame().reset_index()
dfTw_Age21_per['Taiwan']=((dfTw_Age21_per['2021'] / len(dfTw_Age21))*100).round(2)
dfTw_Age21_per

dfCh_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='China']
dfCh_Age21_per=dfCh_Age21['2021'].value_counts().to_frame().reset_index()
dfCh_Age21_per['China']=((dfCh_Age21_per['2021'] / len(dfCh_Age21))*100).round(2)
dfCh_Age21_per

df21Age_Ea.head()
dfJp_Age21= df21Age_Ea[df21Age_Ea['East_Asia']=='Japan']
dfJp_Age21_per=dfJp_Age21['2021'].value_counts().to_frame().reset_index()
dfJp_Age21_per['Japan']=((dfJp_Age21_per['2021'] / len(dfJp_Age21))*100).round(2)
dfJp_Age21_per



#g 그리기(heatMap)
merge1= pd.merge(dfKo_Age21_per,dfTw_Age21_per, on='index', how='outer')
merge2= pd.merge(dfCh_Age21_per,dfJp_Age21_per, on='index', how='outer')
merge= pd.merge(merge1,merge2, on='index', how='outer').fillna(0).sort_values(by=['index'],ascending=True)

merge.iloc[:,[2,4,6,8]]
merge.iloc[:,[2,4,6,8]].to_numpy()



fig = go.Figure(data=go.Heatmap(
                   z=merge.iloc[:,[2,4,6,8]].to_numpy(),
                   x=['South Korea','Taiwan','China','Japan'],
                   y=merge.sort_values(by=['index'],ascending=True)['index'].tolist(),
                   hoverongaps = False,
                   opacity=1.0, xgap=2.5, ygap=2.5, colorscale='orrd'),
                   )
fig.show()

0.2 Kaggle Edu (Ea)

0.1.1 data 전처리

0.2.1 그래프 그리기

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# 연도별 학력
df21Edu_Ea = df21_Ea.loc[:,['Q3','Q4']].reset_index().rename(columns={'Q3':'East_Asia', 'Q4':'2021'}).fillna('etc')
df20Edu_Ea = df20_Ea.loc[:,['Q3','Q4']].reset_index().rename(columns={'Q3':'East_Asia', 'Q4':'2020'}).fillna('etc')
df19Edu_Ea = df19_Ea.loc[:,['Q3','Q4']].reset_index().rename(columns={'Q3':'East_Asia', 'Q4':'2019'}).fillna('etc')
df18Edu_Ea = df18_Ea.loc[:,['Q3','Q4']].reset_index().rename(columns={'Q3':'East_Asia', 'Q4':'2018'}).fillna('etc')
df17Edu_Ea = df17_Ea.loc[:,['Country','FormalEducation']].reset_index().rename(columns={'Country':'East_Asia', 'FormalEducation':'2017'}).fillna('etc')

df21Edu_Ea =df21Edu_Ea.replace({'I prefer not to answer':'etc'}).sort_values(by='2021', ascending=False)
df20Edu_Ea =df20Edu_Ea.replace({'I prefer not to answer':'etc'}).sort_values(by='2020', ascending=False)
df19Edu_Ea =df19Edu_Ea.replace({'I prefer not to answer':'etc'}).sort_values(by='2019', ascending=False)
df18Edu_Ea =df18Edu_Ea.replace({'I prefer not to answer':'etc'}).sort_values(by='2018', ascending=False)
df17Edu_Ea =df17Edu_Ea.replace({'I prefer not to answer':'etc'}).sort_values(by='2017', ascending=False)

#data frame 정리
dfEdu21 =df21Edu_Ea.groupby(['East_Asia','2021']).size().reset_index().rename(columns = {0:"Count"})
dfEdu20 =df20Edu_Ea.groupby(['East_Asia','2020']).size().reset_index().rename(columns = {0:"Count"})
dfEdu19 =df19Edu_Ea.groupby(['East_Asia','2019']).size().reset_index().rename(columns = {0:"Count"})
dfEdu18 =df18Edu_Ea.groupby(['East_Asia','2018']).size().reset_index().rename(columns = {0:"Count"})
dfEdu17 =(df17Edu_Ea.groupby(['East_Asia','2017'])
          .size().reset_index().rename(columns = {0:"Count"}))

# 비율 data 추가
##21
dfEdu21_percent =df21Edu_Ea.groupby(['East_Asia','2021']).size().reset_index().rename(columns = {0:"Count"})
dfEdu21_percent['percent'] =((dfEdu21_percent['Count'] / len(df21Edu_Ea))*100).round(2)
dfEdu21_percent['percent_str'] =((dfEdu21_percent['Count'] / len(df21Edu_Ea))*100).round(2).astype(str) + '%'
##20
dfEdu20_percent =df20Edu_Ea.groupby(['East_Asia','2020']).size().reset_index().rename(columns = {0:"Count"})
dfEdu20_percent['percent'] =((dfEdu20_percent['Count'] / len(df20Edu_Ea))*100).round(2)
dfEdu20_percent['percent_str'] =((dfEdu20_percent['Count'] / len(df20Edu_Ea))*100).round(2).astype(str) + '%'
##19
dfEdu19_percent =df19Edu_Ea.groupby(['East_Asia','2019']).size().reset_index().rename(columns = {0:"Count"})
dfEdu19_percent['percent'] =((dfEdu19_percent['Count'] / len(df19Edu_Ea))*100).round(2)
dfEdu19_percent['percent_str'] =((dfEdu19_percent['Count'] / len(df19Edu_Ea))*100).round(2).astype(str) + '%'
##18
dfEdu18_percent =df18Edu_Ea.groupby(['East_Asia','2018']).size().reset_index().rename(columns = {0:"Count"})
dfEdu18_percent['percent'] =((dfEdu18_percent['Count'] / len(df18Edu_Ea))*100).round(2)
dfEdu18_percent['percent_str'] =((dfEdu18_percent['Count'] / len(df18Edu_Ea))*100).round(2).astype(str) + '%'
##19
dfEdu17_percent =df17Edu_Ea.groupby(['East_Asia','2017']).size().reset_index().rename(columns = {0:"Count"})
dfEdu17_percent['percent'] =((dfEdu17_percent['Count'] / len(df17Edu_Ea))*100).round(2)
dfEdu17_percent['percent_str'] =((dfEdu17_percent['Count'] / len(df17Edu_Ea))*100).round(2).astype(str) + '%'


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#21년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfEdu21_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2021'], y = group['percent'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2021_나라별 학력')
fig.show()

#20년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfEdu20_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2020'], y = group['percent'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2020_나라별 학력')

fig.show()

#19년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfEdu19_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2019'], y = group['percent'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2019_나라별 학력')

fig.show()


#18년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfEdu18_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2018'], y = group['percent'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2018_나라별 학력')

fig.show()


#17년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfEdu17_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2017'], y = group['percent'], name = country
   ))
fig.update_layout(barmode="group", 
                 plot_bgcolor = "white",
                 title='2017_나라별 학력')

fig.show()

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#21년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfEdu21_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2021'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="stack", 
                 plot_bgcolor = "white",
                 title='2021_나라별 학력 비율 ')
fig.show()

#20년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfEdu20_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2020'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="stack", 
                 plot_bgcolor = "white",
                 title='2020_나라별 학력 비율 ')

fig.show()

#19년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfEdu19_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2019'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="stack", 
                 plot_bgcolor = "white",
                 title='2019_나라별 학력 비율 ')

fig.show()


#18년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfEdu18_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2018'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="stack", 
                 plot_bgcolor = "white",
                 title='2018_나라별 학력 비율  ')

fig.show()


#17년도 Bar graph 그리기
fig = go.Figure()

for country, group  in dfEdu17_percent.groupby('East_Asia'):
   fig.add_trace(go.Bar(
       x = group['2017'], y = group['Count'], name = country
   ))
fig.update_layout(barmode="stack", 
                 plot_bgcolor = "white",
                 title='2017_나라별 학력 비율 ')

fig.show()

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z = df21_Ea.groupby(['Q4', 'Q1']).size().unstack().fillna(0).astype('int64')
z_data = z.apply(lambda x:np.round(x/x.sum(), 2), axis = 1).to_numpy() # convert to correlation matrix
x = z.columns.tolist()
y = z.index.tolist()

fig = ff.create_annotated_heatmap(z_data, x = x, y = y, colorscale = "sunset")
fig.show()

경력

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#전체 코드
_3year = ['I have never written code', '< 1 years', '1-3 years']
_5year = ['3-5 years ','5-10 years']
_10year = ['10-20 years','20+ years']

df21_3year = df21['Q6'][df21['Q6'].isin(_3year)]
df21_5year = df21['Q6'][df21['Q6'].isin(_5year)]
df21_10year = df21['Q6'][df21['Q6'].isin(_10year)]

df21_3year.count()
df21_5year.count()
df21_10year.count()

years =['_3year','_5year', '_10year']
values =[df21_3year.count(),
         df21_5year.count(),
        df21_10year.count()]

fig = go.Figure(data=[
    go.Bar(name='21년 World kaggler들의 경력', x=years, y=values ,orientation='v'),])

fig.update_layout(title_text="<b>21년 World kaggler들의 경력</b>",title_font_size=35)

fig.show()
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#최종 합친 코드
_3year = ['I have never written code', '< 1 years', '1-3 years']
_5year = ['3-5 years ','5-10 years']
_10year = ['10-20 years','20+ years']

df21_Ea_3year = df21_Ea['Q3'][df21_Ea['Q6'].isin(_3year)].value_counts().to_frame().rename(columns = {'Q3':'3year'})
df21_Ea_5year = df21_Ea['Q3'][df21_Ea['Q6'].isin(_5year)].value_counts().to_frame().rename(columns = {'Q3':'5year'})
df21_Ea_10year = df21_Ea['Q3'][df21_Ea['Q6'].isin(_10year)].value_counts().to_frame().rename(columns = {'Q3':'10year'})

career=(df21_Ea_3year.join(df21_Ea_5year).join(df21_Ea_10year))
career

career.iloc[0,0:3] #China
career.iloc[1,0:3] #Japan
career.iloc[2,0:3] #South Korea
career.iloc[3,0:3] #Taiwan

fig = go.Figure(data=[
    go.Bar(name='China', x = years, 
                           y=career.iloc[0,0:3]),
    go.Bar(name='Japan', x = years, 
                             y=career.iloc[1,0:3]),
    go.Bar(name='South Korea', x= years, 
                            y=career.iloc[2,0:3]),
    go.Bar(name='Taiwan', x= years, 
                            y=career.iloc[3,0:3])
    ])

fig.update_layout(title_text="<b>21년 EastAisa kaggler들의 경력</b>",title_font_size=35)
fig.show()

연봉

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#전체 코드

#마지막 행 삭제해줌
df21_=(df21['Q25'].value_counts().to_frame())
#df21_=df21_.drop(df21_.index[26])
#df21_

compensation = df21_['Q25'].index
fig = go.Figure(data=[
    go.Bar(name='21년 World kaggler들의 연봉', x=compensation, y=df21_['Q25'].to_numpy() ,orientation='v')])

fig.update_layout(title_text="<b>21년 World kaggler들의 연봉</b>",title_font_size=35)

fig.show()
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compensation = df21_['Q25'].index

fig = go.Figure(data=[
    go.Bar(name='China', x = compensation, 
                           y = df21_Ea['Q25'][df21_Ea['Q3'] =='Japan'].value_counts()),
    
    go.Bar(name='Japan', x = compensation, 
                             y=df21_Ea['Q25'][df21_Ea['Q3'] =='Taiwan'].value_counts()),
    
    go.Bar(name='South Korea', x = compensation, 
                            y=df21_Ea['Q25'][df21_Ea['Q3'] =='South Korea'].value_counts()),
    
    go.Bar(name='Taiwan', x = compensation, 
                            y=df21_Ea['Q25'][df21_Ea['Q3'] =='China'].value_counts())
    ])

fig.update_layout(title_text="<b>21년 EastAisa kaggler들의 연봉</b>",title_font_size=35)
fig.show()

언어

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df21['Q7_Part_1'].value_counts()
Python    21860
Name: Q7_Part_1, dtype: int64

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#코드 전체

df21_p = df21['Q7_Part_1'].value_counts().to_frame() #python
df21_r = df21['Q7_Part_2'].value_counts().to_frame() #r
df21_s = df21['Q7_Part_3'].value_counts().to_frame() #sql
df21_c = df21['Q7_Part_4'].value_counts().to_frame() #c
df21_cc = df21['Q7_Part_5'].value_counts().to_frame() #c++
df21_j = df21['Q7_Part_6'].value_counts().to_frame() #java
df21_js = df21['Q7_Part_7'].value_counts().to_frame() #javascript
df21_ju = df21['Q7_Part_8'].value_counts().to_frame() #julia
df21_sw = df21['Q7_Part_9'].value_counts().to_frame() #swift
df21_b = df21['Q7_Part_10'].value_counts().to_frame() #bash
df21_ma = df21['Q7_Part_11'].value_counts().to_frame() #matlab
df21_n = df21['Q7_Part_12'].value_counts().to_frame() #none

languages = ['Python','R','SQL','C','C++','Java','Javascript','Julia','Swift','Bash','MATLAB','None']

fig = go.Figure(data=[
    go.Bar(name='21년 World kaggler들이 사용하는 언어', x = languages, 
                                                     y = [df21_p.iloc[0,0],
                                                          df21_r.iloc[0,0],
                                                          df21_s.iloc[0,0],
                                                          df21_c.iloc[0,0],
                                                          df21_cc.iloc[0,0],
                                                          df21_j.iloc[0,0],
                                                          df21_js.iloc[0,0],
                                                          df21_ju.iloc[0,0],
                                                          df21_sw.iloc[0,0],
                                                          df21_b.iloc[0,0],
                                                          df21_ma.iloc[0,0],
                                                          df21_n.iloc[0,0]],orientation='v')
                    
                    ])

fig.update_layout(title_text="<b>21년 World kaggler들이 사용하는 언어</b>",title_font_size=35)

fig.show()
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df21_lan_ch_p=df21_Ea['Q7_Part_1'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_1':'cnt'})
df21_lan_ch_r=df21_Ea['Q7_Part_2'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_2':'cnt'})
df21_lan_ch_s=df21_Ea['Q7_Part_3'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_3':'cnt'})
df21_lan_ch_c=df21_Ea['Q7_Part_4'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_4':'cnt'})
df21_lan_ch_cc=df21_Ea['Q7_Part_5'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_5':'cnt'})
df21_lan_ch_j=df21_Ea['Q7_Part_6'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_6':'cnt'})
df21_lan_ch_js=df21_Ea['Q7_Part_7'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_7':'cnt'})
df21_lan_ch_ju=df21_Ea['Q7_Part_8'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_8':'cnt'})
df21_lan_ch_sw=df21_Ea['Q7_Part_9'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_9':'cnt'})
df21_lan_ch_b=df21_Ea['Q7_Part_10'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_10':'cnt'})
df21_lan_ch_ma=df21_Ea['Q7_Part_11'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_11':'cnt'})
df21_lan_ch_n=df21_Ea['Q7_Part_12'][df21_Ea['Q3']=='China'].value_counts().to_frame().rename(columns = {'Q7_Part_12':'cnt'})
ch_lan = pd.concat([df21_lan_ch_p,df21_lan_ch_r,df21_lan_ch_s,df21_lan_ch_c,df21_lan_ch_cc,df21_lan_ch_j,df21_lan_ch_js,df21_lan_ch_ju,df21_lan_ch_sw,df21_lan_ch_b,df21_lan_ch_ma,df21_lan_ch_n])


df21_lan_jp_p=df21_Ea['Q7_Part_1'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_1':'cnt'})
df21_lan_jp_r=df21_Ea['Q7_Part_2'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_2':'cnt'})
df21_lan_jp_s=df21_Ea['Q7_Part_3'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_3':'cnt'})
df21_lan_jp_c=df21_Ea['Q7_Part_4'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_4':'cnt'})
df21_lan_jp_cc=df21_Ea['Q7_Part_5'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_5':'cnt'})
df21_lan_jp_j=df21_Ea['Q7_Part_6'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_6':'cnt'})
df21_lan_jp_js=df21_Ea['Q7_Part_7'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_7':'cnt'})
df21_lan_jp_ju=df21_Ea['Q7_Part_8'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_8':'cnt'})
df21_lan_jp_sw=df21_Ea['Q7_Part_9'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_9':'cnt'})
df21_lan_jp_b=df21_Ea['Q7_Part_10'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_10':'cnt'})
df21_lan_jp_ma=df21_Ea['Q7_Part_11'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_11':'cnt'})
df21_lan_jp_n=df21_Ea['Q7_Part_12'][df21_Ea['Q3']=='Japan'].value_counts().to_frame().rename(columns = {'Q7_Part_12':'cnt'})
jp_lan = pd.concat([df21_lan_jp_p,df21_lan_jp_r,df21_lan_jp_s,df21_lan_jp_c,df21_lan_jp_cc,df21_lan_jp_j,df21_lan_jp_js,df21_lan_jp_ju,df21_lan_jp_sw,df21_lan_jp_b,df21_lan_jp_ma,df21_lan_jp_n])


df21_lan_tw_p=df21_Ea['Q7_Part_1'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_1':'cnt'})
df21_lan_tw_r=df21_Ea['Q7_Part_2'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_2':'cnt'})
df21_lan_tw_s=df21_Ea['Q7_Part_3'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_3':'cnt'})
df21_lan_tw_c=df21_Ea['Q7_Part_4'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_4':'cnt'})
df21_lan_tw_cc=df21_Ea['Q7_Part_5'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_5':'cnt'})
df21_lan_tw_j=df21_Ea['Q7_Part_6'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_6':'cnt'})
df21_lan_tw_js=df21_Ea['Q7_Part_7'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_7':'cnt'})
df21_lan_tw_ju=df21_Ea['Q7_Part_8'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_8':'cnt'})
df21_lan_tw_sw=df21_Ea['Q7_Part_9'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_9':'cnt'})
df21_lan_tw_b=df21_Ea['Q7_Part_10'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_10':'cnt'})
df21_lan_tw_ma=df21_Ea['Q7_Part_11'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_11':'cnt'})
df21_lan_tw_n=df21_Ea['Q7_Part_12'][df21_Ea['Q3']=='Taiwan'].value_counts().to_frame().rename(columns = {'Q7_Part_12':'cnt'})
tw_lan = pd.concat([df21_lan_tw_p,df21_lan_tw_r,df21_lan_tw_s,df21_lan_tw_c,df21_lan_tw_cc,df21_lan_tw_j,df21_lan_tw_js,df21_lan_tw_ju,df21_lan_tw_sw,df21_lan_tw_b,df21_lan_tw_ma,df21_lan_tw_n])


df21_lan_ko_p=df21_Ea['Q7_Part_1'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_1':'cnt'})
df21_lan_ko_r=df21_Ea['Q7_Part_2'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_2':'cnt'})
df21_lan_ko_s=df21_Ea['Q7_Part_3'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_3':'cnt'})
df21_lan_ko_c=df21_Ea['Q7_Part_4'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_4':'cnt'})
df21_lan_ko_cc=df21_Ea['Q7_Part_5'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_5':'cnt'})
df21_lan_ko_j=df21_Ea['Q7_Part_6'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_6':'cnt'})
df21_lan_ko_js=df21_Ea['Q7_Part_7'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_7':'cnt'})
df21_lan_ko_ju=df21_Ea['Q7_Part_8'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_8':'cnt'})
df21_lan_ko_sw=df21_Ea['Q7_Part_9'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_9':'cnt'})
df21_lan_ko_b=df21_Ea['Q7_Part_10'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_10':'cnt'})
df21_lan_ko_ma=df21_Ea['Q7_Part_11'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_11':'cnt'})
df21_lan_ko_n=df21_Ea['Q7_Part_12'][df21_Ea['Q3']=='South Korea'].value_counts().to_frame().rename(columns = {'Q7_Part_12':'cnt'})
ko_lan = pd.concat([df21_lan_ko_p,df21_lan_ko_r,df21_lan_ko_s,df21_lan_ko_c,df21_lan_ko_cc,df21_lan_ko_j,df21_lan_ko_js,df21_lan_ko_ju,df21_lan_ko_sw,df21_lan_ko_b,df21_lan_ko_ma,df21_lan_ko_n])


ch_lan['cnt'].to_list()

languages = ['Python','R','SQL','C','C++','Java','Javascript','Julia','Swift','Bash','MATLAB','None']

fig = go.Figure(data=[
    go.Bar(name='China', x = languages, 
                         y = ch_lan['cnt'].tolist()),
    
    go.Bar(name='Japan', x = languages, 
                             y=jp_lan['cnt'].tolist()),
    
    go.Bar(name='South Korea', x = languages, 
                            y=ko_lan['cnt'].tolist()),
    
    go.Bar(name='Taiwan', x = languages, 
                            y=tw_lan['cnt'].tolist())
          ])

fig.update_layout(title_text="<b>21년 EastAisa kaggler들이 사용하는 언어</b>",title_font_size=35)
fig.show()

Thank you for reading!

 게시 됨 업데이트 됨python - plotly2분안에 읽기 (약 373 단어)

kaggle HeatMap

HeatMap

python문법의 plotly Library를 이용하여 Heatmap을 알아보자

  • HeatMap의 Gradation 색을 바꾸고 싶다면, colorscales 을 참고 해 보자.

HeatMap 1

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import plotly.figure_factory as ff

z=[[1, 90, 30, 50, 1], [20, 1, 60, 80, 30], [30, 60, 1, 50, 20]]
x=['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']
y=['Morning', 'Afternoon', 'Evening']

fig = ff.create_annotated_heatmap(z, x = x, y = y, colorscale = "Viridis")
fig.show()

Input data를 맞춰 줘야한다.

  • x, y = List
  • z= 배열

heatmap

HeatMap 2

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import plotly.graph_objects as go
from functools import reduce
from itertools import product

z=[[1, 90, 30, 50, 1], [20, 1, 60, 80, 30], [30, 60, 1, 50, 20]]
x=['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']
y=['Morning', 'Afternoon', 'Evening']

def get_anno_text(z_value):
    annotations=[]
    a, b = len(z_value), len(z_value[0])
    flat_z = reduce(lambda x,y: x+y, z_value) # z_value.flat if you deal with numpy
    coords = product(range(a), range(b))
    for pos, elem in zip(coords, flat_z):
        annotations.append({'font': {'color': '#FFFFFF'},
                    'showarrow': False,
                    'text': str(elem),
                    'x': pos[1],
                    'y': pos[0]})
    return annotations

fig = go.Figure(data=go.Heatmap(
                   z=z,
                   x=x,
                   y=y,
                   hoverongaps = True))

fig.update_layout(annotations = get_anno_text(z))
fig.show()

HeatMap2

HeatMap 3

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import plotly.graph_objects as go

z = df.groupby(['Q4', 'Q1']).size().unstack().fillna(0).astype('int16')
# convert to correlation matrix
z2 = z.apply(lambda x:x/x.sum(), axis = 1)

x = z2.columns
y = z2.index

fig = go.Figure(data=go.Heatmap(
                   z=z2.to_numpy(),  #dataframe을 넘파이(배열)로 바꿔줌: List형태
                   x=x,
                   y=y,
                   type="heatmap",
                   colorscale = "Viridis",
                   hoverongaps = False))

fig.update_layout(
    title='Degree ~ Gender',
    xaxis_nticks=36)

fig.show()

HeatMap3

  • z2 = z.apply(lambda x:x/x.sum(), axis = 1)
  • 여기서 이 한줄로 인해 dataFrame이 Heatmap에 들어 갈 수 있는 상관관계G를 만들 수 있는 상태로 변환.
  • data 자료형을 맞춰줘야 한다. (x, y, z)

HeatMap Ref.

Ref.

 게시 됨 업데이트 됨python - plotly몇 초안에 읽기 (약 49 단어)

[object Object]

#Plotly Tutorial For Kaggle Survey Competitions



진도가 너무 더디게 나가서 Teacher’s code를 조금더 뜯어 본후

python for문이나 if문을 조금 더 잘 쓸 수 있을기를 바란다.

 게시 됨 업데이트 됨python - plotly4분안에 읽기 (약 674 단어)

Stacked Bar (kaggle in East-Asia)

World Vs East Asia



##python을 이용한 plotly Library로 plot 그리기

subplots 를 이용하여 다중 그래프를 그려 보자.

python Library Import

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import numpy as np
import pandas as pd
import seaborn as sns
import matplotlib.pylab as plt

import plotly.io as pio
import plotly.express as px
import plotly.graph_objects as go
import plotly.figure_factory as ff
from plotly.subplots import make_subplots
from plotly.offline import init_notebook_mode, iplot
init_notebook_mode(connected=True)
pio.templates.default = "none"
# import plotly.offline as py
# py.offline.init_notebook_mode()

import os
for dirname, _, filenames in os.walk('/kaggle/input'):
    for filename in filenames:
        print(os.path.join(dirname, filename))

import warnings
warnings.filterwarnings("ignore")

data import

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df17= pd.read_csv("/kaggle/input/kaggle-survey-2017/multipleChoiceResponses.csv", encoding="ISO-8859-1")
df18= pd.read_csv("/kaggle/input/kaggle-survey-2018/multipleChoiceResponses.csv", )
df19= pd.read_csv("/kaggle/input/kaggle-survey-2019/multiple_choice_responses.csv", )
df20= pd.read_csv("/kaggle/input/kaggle-survey-2020/kaggle_survey_2020_responses.csv", )
df21= pd.read_csv("/kaggle/input/kaggle-survey-2021/kaggle_survey_2021_responses.csv", )

data frame 전처리

i) Q3를 기준으로 EastAsia에 속하는 나라만 연도별로 뽑아냅니다. 

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df21_Ea=df21[df21['Q3'].isin(EastAsia21)]
Ea21= (
    df21_Ea['Q3'].value_counts().to_frame()
    .reset_index().rename(columns={'index':'Country', 'Q3':'21'}))


df20_Ea=df20[df20['Q3'].isin(EastAsia)]
Ea20= (
    df20_Ea['Q3'].replace('Republic of Korea','South Korea')
    .value_counts().to_frame().reset_index()
    .rename(columns={'index':'Country', 'Q3':'20'}))


df19_Ea=df19[df19['Q3'].isin(EastAsia)]
Ea19= (df19_Ea['Q3'].replace('Republic of Korea','South Korea')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Q3':'19'}))


df18_Ea=df18[df18['Q3'].isin(EastAsia)]
Ea18= (df18_Ea['Q3'].replace('Republic of Korea','South Korea')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Q3':'18'}))
Ea18.value_counts()
#df18 열에 taiwan = 0을 추가 해야 합니다. 


df17_Ea = df17[df17['Country'].isin(EastAsia)]
Ea17= (df17_Ea['Country'].replace("People 's Republic of China",'China')
       .value_counts().to_frame().reset_index()
       .rename(columns={'index':'Country', 'Country':'17'}))

ii) data를 합쳐서 하나의 dataframe으로 만들음.

이 과정에서 pd.merge()를 사용 해 주었기 때문에 18’ taiwan data가 Nan으로 추가 되었다.

pd.merge

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fig = go.Figure(data=[
    go.Bar(name='2017', x=df5years['Country'], y=df5years['17']),
    go.Bar(name='2018', x=df5years['Country'], y=df5years['18']),
    go.Bar(name='2019', x=df5years['Country'], y=df5years['19']),
    go.Bar(name='2020', x=df5years['Country'], y=df5years['20']),
    go.Bar(name='2021', x=df5years['Country'], y=df5years['21'])
])

fig.show()

Q3barAsia

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#Change the bar mode
fig.update_layout(barmode='stack', title='연도별 동아시아 Kaggle 사용자수'
                  )

Q3barAsia_stacked

  • stacked bar로 할까말까 고민중.
  • dictation 할 때 까지만 해도 bar 그래프 그리는 것이 뭐그리 어렵겠나? 했다.
  • 그냥 복사 붙여넣기로 만드려고 했는데
  • 그게 참 안되네 ㅂㄷㅂㄷ 
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df5years_ =df5years.transpose()
df5years_= df5years_.iloc[1:]

fig2 = go.Figure(data=[
    go.Bar(name='China', x=years, y=df5years_[0]),
    go.Bar(name='Japan', x=years, y=df5years_[1]),
    go.Bar(name='Taiwan', x=years, y=df5years_[2]),
    go.Bar(name='South Korea', x=years, y=df5years_[3]),
])





fig2.show()

Q3barAsia_stackedR

  • 축 reverse로 할까말까 고민중.
  • 어떤게 더 잘 보여 줄 수 있을까 … ㅜㅜ
 게시 됨 업데이트 됨python - plotly4분안에 읽기 (약 543 단어)

Subplots in python (kaggle in East-Asia)

World Vs East Asia



##python을 이용한 plotly Library로 plot 그리기

subplots 를 이용하여 다중 그래프를 그려 보자.

python Library Import

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import numpy as np
import pandas as pd
import seaborn as sns
import matplotlib.pylab as plt

import plotly.io as pio
import plotly.express as px
import plotly.graph_objects as go
import plotly.figure_factory as ff
from plotly.subplots import make_subplots
from plotly.offline import init_notebook_mode, iplot
init_notebook_mode(connected=True)
pio.templates.default = "none"
# import plotly.offline as py
# py.offline.init_notebook_mode()

import os
for dirname, _, filenames in os.walk('/kaggle/input'):
    for filename in filenames:
        print(os.path.join(dirname, filename))

import warnings
warnings.filterwarnings("ignore")

data import

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df17= pd.read_csv("/kaggle/input/kaggle-survey-2017/multipleChoiceResponses.csv", encoding="ISO-8859-1")
df18= pd.read_csv("/kaggle/input/kaggle-survey-2018/multipleChoiceResponses.csv", )
df19= pd.read_csv("/kaggle/input/kaggle-survey-2019/multiple_choice_responses.csv", )
df20= pd.read_csv("/kaggle/input/kaggle-survey-2020/kaggle_survey_2020_responses.csv", )
df21= pd.read_csv("/kaggle/input/kaggle-survey-2021/kaggle_survey_2021_responses.csv", )

data frame 전처리

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total17 = (
    df17['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index() 
)

total18 = (
    df18['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index() 
)

total19 = (
    df19['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index() 
)

total20 = (
    df20['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index() 
)

total21 = (
    df21['region']
    .value_counts()
    .to_frame()
    .reset_index()
    .rename(columns={'index':'type', 'region':'respodents'})
    .groupby('type')
    .sum()
    .reset_index() 
)

plot 그리기

make_subplots 로 여러개의 그래프를 한 plot에 담아 봅시다.

  • pie그래프를 연도별로 담아 봅시다. 
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# Create subplots: use 'domain' type for Pie subplot


##subplots가 담길 행렬을 만들어 줍니다. rows와 cols를 맞춰서 제목도 달아 줍니다. 
fig = make_subplots(rows=1, cols=5, 
                    specs=[[{'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}, {'type':'domain'}]],
                   subplot_titles=("2017", "2018", "2019", "2020", "2021"))

## scalegroup = one으로 설정 하게 되면, data의 크기에 따라 pie의 크기가 결정됩니다. 
fig.add_trace(go.Pie(labels=total21['type'],
                     values=total21['respodents'], name="2021", scalegroup='one'),
              1, 1)
fig.add_trace(go.Pie(labels=total20['type'], 
                     values=total20['respodents'], name="2020", scalegroup='one'),
              1, 2)
fig.add_trace(go.Pie(labels=total19['type'], 
                     values=total19['respodents'], name="2019", scalegroup='one'),
              1, 3)
fig.add_trace(go.Pie(labels=total18['type'], 
                     values=total18['respodents'], name="2018", scalegroup='one'),
              1, 4)
fig.add_trace(go.Pie(labels=total17['type'], 
                     values=total17['respodents'], name="2017", scalegroup='one'),
              1, 5)




# Use `hole` to create a donut-like pie chart
fig.update_traces(hole=.2, hoverinfo="label+percent+name")
fig.update_layout(
    title_text="<b>World vs EastAsia</b>",
    # Add annotations in the center of the donut pies.
   )
fig.show()

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