[R] Uisng a Dictionary with tm Package

[Patrick Casimir]

Hello Fellows,


I used the dictionary function to capture terms from a corpus of 102 docs but the dictionary only captures those terms in 10 documents. I need those terms from all 102 docs. Any idea why? How do I get the dictionary to return for all 102 docs? See my coding below.


> myTerms <- c("prostatic", "adenocarcinoma", "grade")
> inspect(DocumentTermMatrix(docs, list(dictionary = myTerms)))

<<DocumentTermMatrix (documents: 102, terms: 3)>>
Non-/sparse entries: 292/14
Sparsity           : 5%
Maximal term length: 14
Weighting          : term frequency (tf)
Sample             :
               Terms
Docs            adenocarcinoma grade prostatic
  Patient14.txt             11     6         3
  Patient15.txt              7    12         2
  Patient16.txt             13    16         4
  Patient19.txt              5    13         2
  Patient24.txt             11    12         4
  Patient25.txt              8     9         4
  Patient41.txt              8    10         4
  Patient46.txt              8    10         3
  Patient8.txt               9    12         2
  Patient9.txt               8    23         2


Pat



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