NAME
Algorithm::Evolutionary::Individual::BitString - Classic bitstring individual for evolutionary computation; usually called chromosome
SYNOPSIS
use Algorithm::Evolutionary::Individual::BitString;
my $indi = new Algorithm::Evolutionary::Individual::BitString 10 ; # Build random bitstring with length 10
# Each element in the range 0 .. 1
my $indi3 = new Algorithm::Evolutionary::Individual::BitString;
$indi3->set( { length => 20 } ); #Sets values, but does not build the string
$indi3->randomize(); #Creates a random bitstring with length as above
print $indi3->Atom( 7 ); #Returns the value of the 7th character
$indi3->Atom( 3 ) = 1; #Sets the value
$indi3->addAtom( 1 ); #Adds a new character to the bitstring at the end
my $size = $indi3->size(); #Common interface to all individuals, should return 21
my $indi4 = Algorithm::Evolutionary::Individual::BitString->fromString( '10110101'); #Creates an individual from that string
my $indi5 = $indi4->clone(); #Creates a copy of the individual
my @array = qw( 0 1 0 1 0 0 1 ); #Create a tied array
tie my @vector, 'Algorithm::Evolutionary::Individual::BitString', @array;
print tied( @vector )->asXML();
print $indi3->asString(); #Prints the individual
print $indi3->asXML() #Prints it as XML. See
print $indi3->as_yaml() #Change of convention, I know...
my $gene_size = 5;
my $min = -1;
my $range = 2;
my @decoded_vector = $indi3->decode( $gene_size, $min, $range);
Base Class
Algorithm::Evolutionary::Individual::String
DESCRIPTION
Bitstring Individual for a Genetic Algorithm. Used, for instance, in a canonical GA
METHODS
new( $length )
Creates a new random bitstring individual, with fixed initial length, and uniform distribution of bits. Options as in Algorithm::Evolutionary::Individual::String
from_string
Similar to a copy ctor; creates a bitstring individual from a string. Will be deprecated soon
set( $hash )
Sets values of an individual; takes a hash as input. Keys are prepended an underscore and turn into instance variables
decode( $gene_size, $min, $range )
Decodes to a vector, each one of whose components ranges between $min and $max. Returns that vector
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: 2010/09/24 08:39:07 $
$Header: /media/Backup/Repos/opeal/opeal/Algorithm-Evolutionary/lib/Algorithm/Evolutionary/Individual/BitString.pm,v 3.4 2010/09/24 08:39:07 jmerelo Exp $
$Author: jmerelo $
$Revision: 3.4 $
$Name $