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Default dimnames()
converts a zero-length character vector to NULL,
leading to the improper functioning of subsetting functions. These are safer
methods to set the dimnames of a dfm or fcm object.
set_dfm_dimnames(x) <- valueset_dfm_docnames(x) <- value
set_dfm_featnames(x) <- value
set_fcm_dimnames(x) <- value
set_fcm_featnames(x) <- value
dfm or fcm
character a vector for docnames or featnames or a list of them for dimnames
dfmat <- dfm(tokens(c("a a b b c", "b b b c")))
quanteda:::set_dfm_featnames(dfmat) <- paste0("feature", 1:3)
quanteda:::set_dfm_docnames(dfmat) <- paste0("DOC", 1:2)
quanteda:::set_dfm_dimnames(dfmat) <- list(c("docA", "docB"), LETTERS[1:3])
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