Description Usage Arguments See Also

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.

1 2 3 | ```
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)
``` |

`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. |

vocabulary

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