/ 
Algorithm-Evolutionary-0.82.1
River stage one • 3 direct dependents • 4 total dependents
/ Algorithm::Evolutionary::Hash_Wheel

NAME

Algorithm::Evolutionary::Hash_Wheel - Random selector of things depending on probabilities

SYNOPSIS

my $wheel = new Algorithm::Evolutionary::Hash_Wheel( \%probs );
print $wheel->spin(); #Returns an element according to probabilities;

DESCRIPTION

Creates a "roulette wheel" for spinning and selecting stuff. It will be used in several places; mainly in the Algorithm::Evolutionary::Op::CanonicalGA. It's similar to Algorithm::Evolutionary::Wheel, but with a hash instead of an array. Probably should unify both..

METHODS

new( $probabilities_hashref )

Creates a new roulette wheel. Takes a hashref, which uses as keys the objects to be returned by the roulette wheel, and as values the ones that are going to be used

spin()

Returns a single individual whose probability is related to its fitness TODO: should return many, probably

Copyright

This file is released under the GPL. See the LICENSE file included in this distribution,
or go to http://www.fsf.org/licenses/gpl.txt

CVS Info: $Date: 2010/03/16 18:39:40 $ 
$Header: /media/Backup/Repos/opeal/opeal/Algorithm-Evolutionary/lib/Algorithm/Evolutionary/Hash_Wheel.pm,v 1.2 2010/03/16 18:39:40 jmerelo Exp $ 
$Author: jmerelo $