J. J. Merelo-Guervós > Algorithm-Evolutionary > Algorithm::Evolutionary::Hash_Wheel

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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( @probabilites )

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

spin()

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: 2009/09/09 09:02:38 $ 
  $Header: /cvsroot/opeal/Algorithm-Evolutionary/lib/Algorithm/Evolutionary/Hash_Wheel.pm,v 1.1 2009/09/09 09:02:38 jmerelo Exp $ 
  $Author: jmerelo $