R: Prune vocabulary

prune_vocabulary {text2vec} | R Documentation

## Prune vocabulary

### Description

This function filters the input vocabulary and throws out very frequent and very infrequent terms. See examples in for the vocabulary function. The parameter `vocab_term_max` can also be used to limit the absolute size of the vocabulary to only the most frequently used terms.

### Usage

    prune_vocabulary(vocabulary, term_count_min = 1L, term_count_max = Inf,
      doc_proportion_min = 0, doc_proportion_max = 1, doc_count_min = 1L,
      doc_count_max = Inf, vocab_term_max = Inf)

### Arguments

`vocabulary` | a vocabulary from the vocabulary function.
`term_count_min` | minimum number of occurences over all documents.
`term_count_max` | maximum number of occurences over all documents.
`doc_proportion_min` | minimum proportion of documents which should contain term.
`doc_proportion_max` | maximum proportion of documents which should contain term.
`doc_count_min` | term will be kept number of documents contain this term is larger than this value
`doc_count_max` | term will be kept number of documents contain this term is smaller than this value
`vocab_term_max` | maximum number of terms in vocabulary.

### See Also

vocabulary

[Package text2vec version 0.5.1 Index]