Sparse Matrix

Creates a simple sparse matrix of document_term_matrix object.

dtm_matrix(dtm, density)

# S3 method for dtm
dtm_matrix(dtm, density = c("sparse", "dense"))

Arguments

dtm	An object of class document_term_matrix as returned by document_term_matrix.
density	Whether to return a dense or sparse matrix.

Examples

# NOT RUN {
init_textanalysis()

# build document
doc1 <- string_document("First document.")
doc2 <- string_document("Second document.")

corpus <- corpus(doc1, doc2)

update_lexicon(corpus)
m <- document_term_matrix(corpus)
dtm_matrix(m) # sparse
dtm_matrix(m, "dense") # dense
# }