NAME

ngrams - Compute the ngram frequencies and produce tables to the stdout.

SYNOPIS

  ngram [--version] [--help] [--n=3] [--normalize] [--type=TYPE]
        [--orderby=ORD] [--onlyfirst=N] [input files]

DESCRIPTION

This script produces n-grams tables of the input files to the standard output.

Options:

--normalize

Prints normalized n-gram frequencies; i.e., the n-gram counts divided by the total number of n-grams of the same size.

--onlyfirst=NUMBER

Prints only the first NUMBER n-grams for each n. See Text::Ngrams module.

--limit=NUMBER

Limit the total number of distinct n-grams (for efficiency reasons, the counts may not be correct at the end).

--version

Prints version.

--help

Prints help.

--n=NUMBER

N-gram size, produces 3-grams by default.

--orderby=frequency|ngram

The n-gram order. See Text::Ngrams module.

--type=character|byte|word|utf8

Type of n-grams produces. See Text::Ngrams module.

PREREQUISITES

Text::Ngrams, Getopt::Long

SCRIPT CATEGORIES

Text::Statistics

README

N-gram analysis for various kinds of n-grams (character, words, bytes, utf8, and user-defined). Based on Text::Ngrams module.

SEE ALSO

Text::Ngrams module.

COPYRIGHT

Copyright 2003-2017 Vlado Keselj http://web.cs.dal.ca/~vlado

This module is provided "as is" without expressed or implied warranty. This is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

The latest version can be found at http://web.cs.dal.ca/~vlado/srcperl/.