detect noise
detect noise
noise(.Object, ...)
## S4 method for signature 'DocumentTermMatrix'
noise(
.Object,
minTotal = 2,
minTfIdfMean = 0.005,
sparse = 0.995,
stopwordsLanguage = "german",
minNchar = 2,
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, ...).Object |
an .Object of class |
... |
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 |
stopwordsLanguage |
e.g. "german", to get stopwords defined in the tm package |
minNchar |
min char length ti 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 |
a list
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