NAME

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

SYNOPSIS

my $wheel = new Algorithm::Evolutionary::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. Take care that fitness must be non-zero positives; since if they aren't, roulette wheel won't work at all

METHODS

new( @probabilites )

Creates a new roulette wheel. Takes an array of numbers, which need not be normalized

spin( [$number_of_individuals = 1])

Returns an individual whose probability is related to its fitness

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: 2010/11/24 09:43:38 $ 
$Header: /cvsroot/opeal/Algorithm-Evolutionary/lib/Algorithm/Evolutionary/Wheel.pm,v 3.3 2010/11/24 09:43:38 jmerelo Exp $ 
$Author: jmerelo $