noise: detect noise

In PolMine/polmineR: Verbs and Nouns for Corpus Analysis

detect noise

Description

detect noise

Usage

noise(.Object, ...)

## S4 method for signature 'DocumentTermMatrix'
noise(
  .Object,
  minTotal = 2,
  minTfIdfMean = 0.005,
  sparse = 0.995,
  stopwordsLanguage = "german",
  minNchar = 2L,
  specialChars = getOption("polmineR.specialChars"),
  numbers = "^[0-9\\.,]+$",
  verbose = TRUE
)

## S4 method for signature 'TermDocumentMatrix'
noise(.Object, ...)

## S4 method for signature 'character'
noise(
  .Object,
  stopwordsLanguage = "german",
  minNchar = 2,
  specialChars = getOption("polmineR.specialChars"),
  numbers = "^[0-9\\.,]+$",
  verbose = TRUE
)

## S4 method for signature 'textstat'
noise(.Object, p_attribute, ...)

Arguments

.Object	An object of class DocumentTermMatrix.
...	further parameters
minTotal	minimum colsum (for DocumentTermMatrix) to qualify a term as non-noise
minTfIdfMean	minimum mean value for tf-idf to qualify a term as non-noise
sparse	Will be passed into tm::removeSparseTerms().
stopwordsLanguage	e.g. "german", to get stopwords defined in the tm package.
minNchar	Minimum number of characters to qualify a term as non-noise.
specialChars	special characters to drop
numbers	regex, to drop numbers
verbose	logical
p_attribute	relevant if applied to a textstat object

Value

a list

PolMine/polmineR documentation built on Nov. 9, 2023, 8:07 a.m.