来自包 tm 的 findAssocs 出现问题

Question

I am attempting to find words associated with a particular word in a term document matrix using the tm package.

I am using findAssocs to do this. Arguments for findAssocs are:

• x: A term-document matrix.
• term: A character holding a term.
• corlimit: A numeric for the lower correlation bound limit.

I am consistently getting numeric(0) as my result

Example:

findAssocs(test.dtm, "investment", 0.90)
>numeric(0)

Does anyone have familiarity with findAssocs and know what I am doing wrong? Or does anyone know more broadly what the numeric(0) result could mean?

Thank you very much in advance for any help.

Answer 1

This result indicates that there are no words associated in 0.90 of documents with the term "investment". Try a lower threshold like 0.05 and work your way up to a threshold that yields fewer terms.

Answer 2

I'm getting the same numeric(0) , I think it's because there is only one document in my Corpus , so the document term matrix only have one column. You may want to test TermDocumentMatrix() and see if you have a multi-column matrix . That said, how do I find association within one document?.

Answer 3

It does appear this functionality only works when analyzing multiple text documents. The only viable solution I have come up with is creating a duplicate of text document and then running the analysis. However, it is uncertain if this changes the results in any way. Any additional feedback would be appreciated.

Answer 4

I think it also has to do with your data file. A text file should work but if it is a .csv with only one column, you will get the (0)