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Manual Reference Pages  -  ALGORITHM::EVOLUTIONARY::OP::TREEMUTATION (3)

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NAME

Algorithm::Evolutionary::Op::TreeMutation - GP-like mutation operator for trees

CONTENTS

SYNOPSIS



  my $op = new Algorithm::Evolutionary::Op::TreeMutation (0.5 ); #Create from scratch



Base Class

Algorithm::Evolutionary::Op::Base

DESCRIPTION

Mutation operator for a genetic programming, mutates tree nodes with a certain probability

METHODS

    new

Creates a new mutation operator with an application rate. Rate defaults to 0.1.

    create

Creates a new mutation operator with an application rate. Rate defaults to 0.5.

Called create to distinguish from the classwide ctor, new. It just makes simpler to create a Mutation Operator

    apply

Applies mutation operator to a Chromosome, but it checks before application that both operands are of type Algorithm::Evolutionary::Individual::Tree.

    mutate

Callback routine called from apply; decides on mutation application, and applies it. If appliable, substitutes a node by other with the same arity. Builds a lists of nodes before, to speed up operation

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: 2009/07/28 11:30:56 $
  $Header: /media/Backup/Repos/opeal/opeal/Algorithm-Evolutionary/lib/Algorithm/Evolutionary/Op/TreeMutation.pm,v 3.1 2009/07/28 11:30:56 jmerelo Exp $
  $Author: jmerelo $
  $Revision: 3.1 $



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perl v5.20.3 ALGORITHM::EVOLUTIONARY::OP::TREEMUTATION (3) 2014-10-25

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