Dtm2Tcm {textmineR} | R Documentation |
Turn a document term matrix into a term co-occurrence matrix
Description
Turn a document term matrix, whose rows index documents and
whose columns index terms, into a term co-occurrence matrix. A term co-occurrence
matrix's rows and columns both index terms. See details
, below.
Usage
Dtm2Tcm(dtm)
Arguments
dtm |
A document term matrix, generally of class |
Value
Returns a square dgCMatrix
whose rows and columns both index
terms. The i, j entries of this matrix represent the count of term j across
documents containing term i. Note that, while square, this matrix is not
symmetric.
Examples
data(nih_sample_dtm)
tcm <- Dtm2Tcm(nih_sample_dtm)
[Package textmineR version 3.0.5 Index]