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")