I have been trying to replicate the example here: but I have had some problems along the way.
Everything worked fine until here:
docsTDM <- TermDocumentMatrix(docs8)
Error in UseMethod("meta", x) : no applicable method for 'meta' applied to an object of class "character"
In addition: Warning message:
In mclapply(unname(content(x)), termFreq, control) :
all scheduled cores encountered errors in user code
So I was able to fix that error modifying this previous step by changing this:
docs8 <- tm_map(docs7, tolower)
docs8 <- tm_map(docs7, content_transformer(tolower))
But then I got in trouble again with:
docsdissim <- dissimilarity(docsTDM, method = "cosine")
Error: could not find function "dissimilarity"
Then I learned that the "dissimilarity" function was replaced by the
dist function, so I did:
docsdissim <- dist(docsTDM, method = "cosine")
Error in crossprod(x, y)/sqrt(crossprod(x) * crossprod(y)) : non-conformable arrays
And there is where I'm stuck.
By the way, my R version is :
R version 3.2.2 (2015-08-14) running on CentOS 7