NAME

List::Rank - Ranking of list elements

VERSION

This document describes version 0.002 of List::Rank (from Perl distribution List-Rank), released on 2018-01-26.

SYNOPSIS

Return the ranks of the elements if sorted numerically (note that equal values will be given equal ranks):

 my @ranks = rank 10, 30, 20, 20; # => 1, 4, "2=", "2="

Return the ranks of the elements if sorted ascibetically:

 my @ranks = rankstr "apricot", "cucumber", "banana", "banana"; # => 1,4,"2=","2="

Return the ranks of the elements if sorted by a custom sorter:

 my @ranks = rankby {length($a) <=> length($b)}
     "apricot", "cucumber", "banana", "banana"; # => 3, 4, "1=", "1="

Sort the list numerically and return the elements as well as ranks in pairs:

 my @res = sortrank 10, 30, 20, 20; => 10,1, 20,"2=", 20,"2=", 30,4

Sort the list ascibetically and return the elements as well as ranks in pairs:

 my @res = sortrankstr "apricot", "cucumber", "banana", "banana";
     # => "apricot",1, "banana","2=", "banana","2=", "cucumber",4

Sort the list by a custom sorter and return the elements as well as ranks in pairs:

 my @res = sortrankby "apple", "cucumber", "banana", "banana";
     # => "banana","1=", "banana","1=", "apricot",3, "cucumber",4

FUNCTIONS

rank

rankstr

rankby

sortrank

sortrankstr

sortrankby

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/List-Rank.

SOURCE

Source repository is at https://github.com/perlancar/perl-List-Rank.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=List-Rank

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

SEE ALSO

Sort::Rank

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2018 by perlancar@cpan.org.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.