freq_filter: Support function for subset method

In kasperwelbers/tcorpus: Managing, Querying and Analyzing Tokenized Text

Support function for subset method

Description

Support function to enable subsetting by frequency stats of a given feature. Should only be used within the tCorpus subset method, or any tCorpus method that supports a subset argument.

Usage

freq_filter(x, min = -Inf, max = Inf, top = NULL, bottom = NULL)

Arguments

x	the name of the feature column. Can be given as a call or a string.
min	A number, setting the minimum frequency value
max	A number, setting the maximum frequency value
top	A number. If given, only the top x features with the highest frequency are TRUE
bottom	A number. If given, only the bottom x features with the highest frequency are TRUE

Examples

tc = create_tcorpus(c('a a a b b'))

tc$tokens
tc$subset(subset = freq_filter(token, min=3))
tc$tokens

kasperwelbers/tcorpus documentation built on May 10, 2023, 5:10 p.m.