how to use stemDocument in R?

Question

update:

Thanks for help. Check comments. Because of package version, I delete the tolower and it works. I just need to find another way to make it lower.

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Answer 1

You are not loading you document correctly. If you have your data in x.csv file then use following:

      > x <- read.csv(file_loc, header = TRUE) // where file_loc is the path to the csv file
      > x <- data.frame(lapply(x, as.character), stringsAsFactors=FALSE)

     > require(tm)
         Loading required package: tm

     > dd <- Corpus(DataframeSource(x))

      > inspect(dd)

Then simply use stemDocument like below:

  fbCorpus <- tm_map(fbCorpus, stemDocument)