Compute the sparsity of a document-feature matrix — sparsity • quanteda

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

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