tm (version 0.7-12)

findAssocs: Find Associations in a Term-Document Matrix

Description

Find associations in a document-term or term-document matrix.

Usage

# S3 method for DocumentTermMatrix
findAssocs(x, terms, corlimit)
# S3 method for TermDocumentMatrix
findAssocs(x, terms, corlimit)

Value

A named list. Each list component is named after a term in terms

and contains a named numeric vector. Each vector holds matching terms from x and their rounded correlations satisfying the inclusive lower correlation limit of corlimit.

Arguments

x

A DocumentTermMatrix or a TermDocumentMatrix.

terms

a character vector holding terms.

corlimit

a numeric vector (of the same length as terms; recycled otherwise) for the (inclusive) lower correlation limits of each term in the range from zero to one.

Examples

data("crude")
tdm <- TermDocumentMatrix(crude)
findAssocs(tdm, c("oil", "opec", "xyz"), c(0.7, 0.75, 0.1))