Text mining- how to build a term-document matrix

Question

What I am trying to do is to load a csv file, and convert to an term-document matrix.

Here's a section of my code:

"alert-sample-data-4-mining.csv," "head=TRUE," "myCorpus"

MyCorpus, control=list(wordLengths=c(1,Inf)), and termDocumentMatrix

but receive a notice that read: Error in UseMethod("TermDocumentMatrix", x) : no applicable method for 'TermDocumentMatrix' applied to an object of class "data.frame"

Answer 1

You're not loading the TM library, and you're not building a corpus, to name a couple of things. If your text data is in the csv file's "text" field, try something like this:

read.csv in library(tm) myCorpus ("alert-sample-data-4-mining.csv")
VectorSource(myCorpus$text) - Corpus
TermDocumentMatrix(corpus)

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