Return the proportion of sparseness of a document-feature matrix, equal to the proportion of cells that have zero counts.

sparsity(x)

Arguments

x

the document-feature matrix

Examples

dfmat <- dfm(data_corpus_inaugural) sparsity(dfmat)
#> [1] 0.9176184
sparsity(dfm_trim(dfmat, min_termfreq = 5))
#> [1] 0.7830391