Filter rarely appearing keywords from documents.
1 2 3 4 5 6 7 | filter_rare(s, min_freq = 1)
## S3 method for class 'character'
filter_rare(s, min_freq = 1)
## S3 method for class 'list'
filter_rare(s, min_freq = 1)
|
s |
A Character string or a list. |
min_freq |
Minimum term frequency to keep terms in. |
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