Steven Haryanto

NAME

Data::Unixish::avg - Average numbers

VERSION

version 1.40

SYNOPSIS

In Perl:

 use Data::Unixish::List qw(dux);
 my $avg = dux('avg', 1, 2, 3, 4, 5); # => 3

In command line:

 % seq 0 100 | dux avg
 .----.
 | 50 |
 '----'

AUTHOR

Steven Haryanto <stevenharyanto@gmail.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2013 by Steven Haryanto.

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

DESCRIPTION

FUNCTIONS

None are exported by default, but they are exportable.

avg(%args) -> [status, msg, result, meta]

Arguments ('*' denotes required arguments):

  • in => any

    Input stream (e.g. array or filehandle).

  • out => any

    Output stream (e.g. array or filehandle).

Return value:

Returns an enveloped result (an array). First element (status) is an integer containing HTTP status code (200 means OK, 4xx caller error, 5xx function error). Second element (msg) is a string containing error message, or 'OK' if status is 200. Third element (result) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information.