I don't know the answer, but let me point out that:
"DocumentTermMatrix" %in% class(TDM) should return FALSE since:
"DocumentTermMatrix" != "TermDocumentMatrix"
--
David.
On Oct 11, 2010, at 4:45 PM, Dario Solari wrote:
I try to fit a LDA model to a TermDocumentMatrix with the topicmodels
package...
but R says:
Error in LDA(TDM, k = k, method = "Gibbs", control = list(seed =
SEED, :
x is of class “TermDocumentMatrix”“simple_triplet_matrix”
class(TDM)
[1] "TermDocumentMatrix" "simple_triplet_matrix"
I try to use a matrix... but don't work:
MAT <- as.matrix(TDM)
Error in LDA(MAT, k = k, method = "Gibbs", control = list(seed =
SEED, :
x is of class “matrix”
The help say is correct to use a DocumentTermMatrix:
Arguments
x Object of class "DocumentTermMatrix"
Can anyone help me?
Thanks
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David Winsemius, MD
West Hartford, CT
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and provide commented, minimal, self-contained, reproducible code.
