In my opinion, you're writing code where you don't need to write code. Almost everything (other than the use of a hash instead of an array) you're trying to do can be done by the module Statistics::Descriptive and in much more compact form. I won't guarantee it will run much faster, but the routines should be easier to manage:

To bin data, for example:

#!/usr/bin/perl
use warnings;
use strict;
use Statistics::Descriptive;

#
# Warning: untested code.
#

my @data = (1,7,2,19,3,4,21,1092,6);

my $stat = Statistics::Descriptive::Full->new();
$stat->add_data(@data);
$stat->sort_data();
print $stat->percentile(25);

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In reply to Re: optimize percentile counting in hash by dwm042
in thread optimize percentile counting in hash by max210

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