View source: R/feature_preparation.r
term_intersect | R Documentation |
Given a dtm and a similarity (adjacency) matrix, create a new column for each nonzero cell in the similarity matrix. For the term combinations (everything except the diagonal) the column names will be pasted together with a "&" separator (read as AND)
term_intersect(dtm, simmat, as_dfm = T, verbose = F, sep = " & ", par = NA)
dtm |
A quanteda dfm or a CsparseMatrix. |
simmat |
A similarity matrix in CsparseMatrix format. For instance, created with term_char_sim |
as_dfm |
If True, return as quanteda dfm |
verbose |
If True, report progress |
sep |
The separator used for pasting the terms |
par |
If TRUE, add parentheses to colnames before combining. This is mainly for internal use, as it allows specification if OR (term_union) and AND (term_intersect) operations are combined. If NA, this is based on whether parenthese are present. |
A CsparseMatrix or quanteda dfm
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