NAME

    Crossover - n-point crossover operator; puts a part of the second operand
                into the first operand; can be 1 or 2 points


SYNOPSIS

  my $xmlStr3=<<EOC;
  <op name='Crossover' type='binary' rate='1'>
    <param name='numpoints' value='3' /> #Max is 2, anyways
  </op>
  EOC
  my $ref3 = XMLin($xmlStr3);
  my $op3 = OpBase->fromXML( $ref3 );
  print $op3->asXML(), "\n";
  my $indi = new BinaryIndi 10;
  my $indi2 = $indi->clone();
  my $indi3 = $indi->clone();
  $op3->apply( $indi2, $indi3 );


Base Class

OpBase


DESCRIPTION

Crossover operator for a GA

new

Creates a new n-point crossover operator, with 2 as the default number of points

create

Creates a new 1 or 2 point crossover operator. But this is just to have a non-empty chromosome Defaults to 2 point

set

Sets the instance variables. Takes a ref-to-hash as input

apply

Applies xover operator to a ``Chromosome'', a bitstring, really. Can be applied only to victims with the _bitstring instance variable; but it checks before application that both operands are of type BinaryIndi.

Changes the first parent, and returns it.

asXML

Prints as XML, following the EvoSpec 0.2 XML specification. Should be called from derived classes, not by itself.


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: 2002/04/23 12:33:47 $ 
  $Header: /cvsroot/opeal/opeal/Crossover.pm,v 1.7 2002/04/23 12:33:47 jmerelo Exp $ 
  $Author: jmerelo $