Hi list
Can someone help me debug the following please:
Having downloaded and installed the bioconductor packages and Rgraphviz,
I am attempting to plot a network graph showing the relation among
chosen words in the corpus of text data.
I first did this:
> plot(dtm, terms=findFreqTerms(dtm, lowfreq=100) [1:30],
corThreshold=0.75)
and received the error message:
Error in `[.simple_triplet_matrix`(m, , terms) : NA indices not allowed.
My next step was to remove any NA indices (although to be honest, this
is more of a stab in the dark because there shouldn't be any NA values
in the corpus):
> docsNA <- (docs[!is.na(docs)])
Then redid the DTM with the NA values removed
> dtmNA <- DocumentTermMatrix(docsNA)
Then re-ran Rgraphviv with the new set
> plot(dtmNA, terms=findFreqTerms(dtmNA, lowfreq=100) [1:10],
corThreshold=0.5)
But, still get an error:
Error in `[.simple_triplet_matrix`(m, , terms) : NA indices not allowed.
I have not been successful in finding out why this error persists nor
what to do about it.
Anyone have any ideas to progress past this issue?
Thanks
Sun
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