tm 包 removeWords 函数连接 R 中的单词

Question

我正在使用 tm 包中的 removewords 清理示例数据，但 removeWords 函数连接单词 post 删除。应该是“环境死蛙”“环境死老鼠”。有人可以指导吗？

library(tm)
dc<-c("environmental dead frog still","environmental dead mouse come")

manualremovelist<-c("the","does","doesn't","please","new","ok","one","cant",
                "doesnt","can","still","done","will","without","seen",
                "also","danfoss","case","doesn´t","due","need","occurs","made",
                "using","now","make","makes","needs","put","okay","sno","since","therefore",
                "found","milwaukee","probably","got","finally","isnt","per","two",
                "obvious","unable","must","nos","3nos","1no",".","phone","tel","attached",
                "given","find","have","see","be","give","do","come","use","make","get",
                "try","call","request")

dc<-removeWords(dc,manualremovelist)

"environmentaldeadfrog"  "environmentaldeadmouse"

Answer 1

removeWords 仅适用于单词。您可以将字符串拆分为单词并在单个 phrases/sentences.

上使用 removeWords

library(tm)

dc  <- sapply(strsplit(dc, '\s+'), function(x) 
        trimws(paste0(removeWords(x, manualremovelist), collapse = ' ')))

dc

#[1] "environmental dead frog"  "environmental dead mouse"

tm 包 removeWords 函数连接 R 中的单词

tm package removeWords function concatenate words in R

r

nlp

tm