Algorithm::Evolutionary::Individual::String - A character string to be evolved. Useful mainly in word games
use Algorithm::Evolutionary::Individual::String;
my $indi = new Algorithm::Evolutionary::Individual::String [a..z] 10; # Build random bitstring with length 10
# Each element in the range 0 .. 1
my $indi3 = new Algorithm::Evolutionary::Individual::String;
$indi3->set( _length => 20,
_chars => [A..Z] ); #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 ) = 'q'; #Sets the value
$indi3->addAtom( 'k' ); #Adds a new character to the bitstring at the end
my $indi4 = Algorithm::Evolutionary::Individual::String->fromString( 'esto es un string'); #Creates an individual from that string
my $indi5 = $indi4->clone(); #Creates a copy of the individual
my @array = qw( a x q W z ñ); #Tie a String individual
tie my @vector, 'Algorithm::Evolutionary::Individual::String', @array;
print tied( @vector )->asXML();
print $indi3->asString(); #Prints the individual
print $indi3->asXML() #Prints it as XML. See
Algorithm::Evolutionary::Individual::Base
String Individual for a evolutionary algorithm. Contains methods to handle strings easily. It is also TIEd so that strings can be handled as arrays.
Creates a new random string, with fixed initial length, and uniform distribution of characters along the character class that is defined.
Assigns random values to the elements
Adds an atom at the end
Similar to a copy ctor; creates a bitstring individual from a string
Similar to a copy ctor: creates a new individual from another one
Prints it
Sets or gets the value of the n-th character in the string
String implements FETCH, STORE, PUSH and the rest, so an String can be tied to an array and used as such.
Returns length of the string that stores the info.
Prints it as XML. See the Algorithm::Evolutionary::XML manpage for more info on this
Sets or gets the variable that holds the chromosome. Not very nice, and I would never ever do this in C++
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: 2002/06/21 09:22:00 $ $Header: /cvsroot/opeal/opeal/Algorithm/Evolutionary/Individual/String.pm,v 1.4 2002/06/21 09:22:00 jmerelo Exp $ $Author: jmerelo $ $Revision: 1.4 $