tm: WeightFunction – R documentation

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WeightFunction

Weighting Function

Description

Construct a weighting function for term-document matrices.

Usage

WeightFunction(x, name, acronym)

Arguments

`x`	A function which takes a `TermDocumentMatrix` with term frequencies as input, weights the elements, and returns the weighted matrix.
`name`	A character naming the weighting function.
`acronym`	A character giving an acronym for the name of the weighting function.

Value

An object of class WeightFunction which extends the class function representing a weighting function.

Examples

weightCutBin <- WeightFunction(function(m, cutoff) m > cutoff,
                               "binary with cutoff", "bincut")

tm

Text Mining Package

v0.7-8

GPL-3

Authors

Ingo Feinerer [aut, cre] (<https://orcid.org/0000-0001-7656-8338>), Kurt Hornik [aut] (<https://orcid.org/0000-0003-4198-9911>), Artifex Software, Inc. [ctb, cph] (pdf_info.ps taken from GPL Ghostscript)

Initial release

2020-11-17