++ed by:
Toby Inkster

NAME

Sort::Key::Top::PP - pure Perl implementation of parts of Sort::Key::Top

SYNOPSIS

        use Sort::Key::Top::PP 'top';
        my @top5 = top 5 => @biglist;

DESCRIPTION

Sort::Key::Top::PP is set of functions for finding the top "n" items in an array by some criteria. It's not as fast as Sort::Key::Top, but it is generally quite a bit faster than sorting the entire array and taking the first "n" items.

This module implements pure Perl equivalents of the following functions as descibed in Sort::Key::Top.

  • top

  • topsort

  • keytop

  • keytopsort

  • ntop

  • ntopsort

  • nkeytop

  • nkeytopsort

  • rtop

  • rtopsort

  • rkeytop

  • rkeytopsort

  • rntop

  • rntopsort

  • rnkeytop

  • rnkeytopsort

  • head

  • nhead

  • keyhead

  • nkeyhead

  • tail

  • ntail

  • keytail

  • nkeytail

By default all functions are exported. If you don't like that, then please specify an explicit list of functions to import, a la:

   use Sort::Key::Top::PP qw( top );

BUGS

Please report any bugs to http://rt.cpan.org/Dist/Display.html?Queue=Sort-Key-Top-PP.

SEE ALSO

Sort::Key::Top, http://blogs.perl.org/users/stas/2012/12/tmtowtdi-plus-benchmarking.html#comments.

AUTHOR

Toby Inkster <tobyink@cpan.org>.

Key parts of the top n selection algorithm (and much egging on) by Stanislaw Pusep (cpan:SYP).

API inspired by Sort::Key::Top by Salvador Fandiño García (cpan:SALVA).

COPYRIGHT AND LICENCE

This software is copyright (c) 2012, 2014 by Toby Inkster.

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

DISCLAIMER OF WARRANTIES

THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.




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