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Math::HashSum - Sum a list of key-value pairs on a per-key basis (Displayed)
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Math::HashSum - Sum a list of key-value pairs on a per-key basis
Math::HashSum - Sum a list of key-value pairs on a per-key basis
use Math::HashSum qw(hashsum);
my %hash1 = (a=>.1, b=>.4);
my %hash2 = (a=>.2, b=>.5);
my %sum = hashsum(%hash1,%hash2);
print "$sum{a}\n"; # Prints .3
print "$sum{b}\n"; # Prints .9
This module allows you to sum a list of key-value pairs on a per-key basis.
It adds up all the values associated with each key in the given list and
returns a hash containing the sum associated with each key.
The example in the synopsis should explain usage of the module effectively.
David James <david@jamesgang.com>
the Math::VecStat manpage, the Lingua::EN::Segmenter::TextTiling manpage for an example of this module in use
Copyright (c) 2002 David James
All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
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