Text Mining in R(02)

Text Mining in R (02)

앞선 내용 :

Text Mining in R (01)

library(KoNLP), useNIADic() 사용/설치


다음 내용 :

Text Mining in R (03)

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§ MeCab 설치

Mecab-ko 형태소 분석기 사용 위해서는 Rcppmecab 패키지가 있어야함.

RcppMeCab install file URL:

해당 깃허브에서 설치해야 할 파일을 다운로드 받은 후,

• 압축 해제 시에 C drive 에서 mecab folder 생성
• 오른쪽 버튼 클릭 후 여기에압출풀기를 선택하면 쉽다.

• 이 과정에서
  
  

• 위의 file내의 폴더 형태와, file 명, 경로 가 같지 않으면 다음과 같은 에러가 난다.

Exception:
list()

• 경로, file명 등을 확인 하기 바란다.
• 오류 해결 참조

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§ R 에서 설치

# library(remotes)
remotes::install_github("junhewk/RcppMeCab", force = TRUE)

library(RcppMeCab)

# library(remotes)
remotes::install_github(“junhewk/RcppMeCab”, force = TRUE)
Downloading GitHub repo junhewk/RcppMeCab@HEAD
Installing 2 packages: BH, RcppParallel
‘C:/Users/brill/Documents/R/win-library/4.1’의 위치에 패키지(들)을 설치합니다.
(왜냐하면 ‘lib’가 지정되지 않았기 때문입니다)
trying URL ‘https://cran.rstudio.com/bin/windows/contrib/4.1/BH_1.75.0-0.zip'
Content type ‘application/zip’ length 19675040 bytes (18.8 MB)
downloaded 18.8 MB

trying URL ‘https://cran.rstudio.com/bin/windows/contrib/4.1/RcppParallel_5.1.4.zip'
Content type ‘application/zip’ length 2140731 bytes (2.0 MB)
downloaded 2.0 MB

package ‘BH’ successfully unpacked and MD5 sums checked
package ‘RcppParallel’ successfully unpacked and MD5 sums checked

The downloaded binary packages are in
C:\Users\brill\AppData\Local\Temp\RtmpmuDZXg\downloaded_packages
√ checking for file ‘C:\Users\brill\AppData\Local\Temp\RtmpmuDZXg\remotes2cd0f4c5d4d\junhewk-RcppMeCab-e1800aa/DESCRIPTION’ (414ms)

• preparing ‘RcppMeCab’: (373ms)
  √ checking DESCRIPTION meta-information …
• cleaning src
• checking for LF line-endings in source and make files and shell scripts
• checking for empty or unneeded directories
  Omitted ‘LazyData’ from DESCRIPTION
• building ‘RcppMeCab_0.0.1.3-2.tar.gz’

‘C:/Users/brill/Documents/R/win-library/4.1’의 위치에 패키지(들)을 설치합니다.
(왜냐하면 ‘lib’가 지정되지 않았기 때문입니다)

• installing source package ‘RcppMeCab’ …
• • using staged installation
• • libs
    “C:/rtools40/mingw64/bin/“g++ -std=gnu++11 -I”C:/PROGRA1/R/R-411.2/include” -DNDEBUG -I../inst/include -DBOOST_NO_AUTO_PTR -I’C:/Users/brill/Documents/R/win-library/4.1/Rcpp/include’ -I’C:/Users/brill/Documents/R/win-library/4.1/RcppParallel/include’ -I’C:/Users/brill/Documents/R/win-library/4.1/BH/include’ -DRCPP_PARALLEL_USE_TBB=1 -DDLL_IMPORT -DSTRICT_R_HEADERS -Wno-parentheses -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c RcppExports.cpp -o RcppExports.o
    “C:/rtools40/mingw64/bin/“g++ -std=gnu++11 -I”C:/PROGRA1/R/R-411.2/include” -DNDEBUG -I../inst/include -DBOOST_NO_AUTO_PTR -I’C:/Users/brill/Documents/R/win-library/4.1/Rcpp/include’ -I’C:/Users/brill/Documents/R/win-library/4.1/RcppParallel/include’ -I’C:/Users/brill/Documents/R/win-library/4.1/BH/include’ -DRCPP_PARALLEL_USE_TBB=1 -DDLL_IMPORT -DSTRICT_R_HEADERS -Wno-parentheses -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c posParallelRcpp.cpp -o posParallelRcpp.o
    “C:/rtools40/mingw64/bin/“g++ -std=gnu++11 -I”C:/PROGRA1/R/R-411.2/include” -DNDEBUG -I../inst/include -DBOOST_NO_AUTO_PTR -I’C:/Users/brill/Documents/R/win-library/4.1/Rcpp/include’ -I’C:/Users/brill/Documents/R/win-library/4.1/RcppParallel/include’ -I’C:/Users/brill/Documents/R/win-library/4.1/BH/include’ -DRCPP_PARALLEL_USE_TBB=1 -DDLL_IMPORT -DSTRICT_R_HEADERS -Wno-parentheses -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c posRcpp.cpp -o posRcpp.o
    “C:/rtools40/mingw64/bin/“g++ -std=gnu++11 -I”C:/PROGRA1/R/R-411.2/include” -DNDEBUG -I../inst/include -DBOOST_NO_AUTO_PTR -I’C:/Users/brill/Documents/R/win-library/4.1/Rcpp/include’ -I’C:/Users/brill/Documents/R/win-library/4.1/RcppParallel/include’ -I’C:/Users/brill/Documents/R/win-library/4.1/BH/include’ -DRCPP_PARALLEL_USE_TBB=1 -DDLL_IMPORT -DSTRICT_R_HEADERS -Wno-parentheses -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c posloopRcpp.cpp -o posloopRcpp.o
    C:/rtools40/mingw64/bin/g++ -shared -s -static-libgcc -o RcppMeCab.dll tmp.def RcppExports.o posParallelRcpp.o posRcpp.o posloopRcpp.o -L../inst/libs/x64 -LC:/Users/brill/Documents/R/win-library/4.1/RcppParallel/lib/x64 -ltbb -ltbbmalloc -lm -llibmecab -LC:/PROGRA1/R/R-411.2/bin/x64 -lR
    installing to C:/Users/brill/Documents/R/win-library/4.1/00LOCK-RcppMeCab/00new/RcppMeCab/libs/x64
• • R
• • inst
• • byte-compile and prepare package for lazy loading
• • help
• ** installing help indices
  converting help for package ‘RcppMeCab’
  finding HTML links … done
  RcppMeCab html
  pos html
  posParallel html
• • building package indices
• • testing if installed package can be loaded from temporary location
• • testing if installed package can be loaded from final location
• • testing if installed package keeps a record of temporary installation path
• DONE (RcppMeCab)

RcppMeCab 설치 확인 (형태소 분리기)

text 1에 한글을 써 본다.

text1 = "안녕하세요?!"
pos(sentence = text1)

text1 = “안녕하세요?!”
pos(sentence = text1)
$�ȳ\xe7\xc7ϼ��\xe4?!
[1] “�/SY” “ȳ/SL” “\xe7\xc7\xcf/SH”
[4] “���/SY” “\xe4?!/SH”

- 인코딩이 UTF-8로 되어 있지 안아서 생기는 문제이다.

text2 = enc2utf8(text1)
pos(sentence = text2)

text2 = enc2utf8(text1)

pos(sentence = text2)

$안녕하세요?!

[1] “안녕/NNG” “하/XSV” “세요/EP+EF” “?/SF” “!/SF”

강사님 도움 받기
강사님 강의 듣기

페이가 안맞아서 그런가 우리 수업에서는 이렇게 안해준다.
못가르치는 것이 아니라 안가르치는 것이어서 화가 나지만, 각자의 사정이 있는것이겠지.
나도 국비 과정 들으면서 너무 많은 것을 바란건 아닌지 생각 해 본다.

설치/ 확인 끝