DocumentTermMatrix 만들기
패키지 불러오기
library(tm)
DocumentTermMatrix 만들기
corpus <- VCorpus(VectorSource(mobile$Texts))
## 제거할 단어 목록 확인
stopwords()
stopwords("SMART")
dtm <- DocumentTermMatrix(corpus,
control = list(tolower = T,
removePunctuation = T,
removeNumbers = T,
stopwords = stopwords("SMART"),
weighting = weightTfIdf))
dtm