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mutationsinglepoint.m

## Copyright (C) 2008 Luca Favatella <slackydeb@gmail.com>
##
##
## This program is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
##
## This program  is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; see the file COPYING.  If not, write to the Free
## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
## 02110-1301, USA.

## -*- texinfo -*-
## @deftypefn{Function File} {@var{mutationChildren} =} mutationsinglepoint (@var{parent})
## Single point mutation.
##
## @seealso{ga, gaoptimset}
## @end deftypefn

## Author: Luca Favatella <slackydeb@gmail.com>
## Version: 3.1

function mutationChildren = mutationsinglepoint (parent)

      %costanti
      N_BIT_DOUBLE = 64;

      %n e' il singolo punto della mutazione
      %n potra' andare da 1 a (N_BIT_DOUBLE * length (parent))
      n = double (uint64 (1 + (((N_BIT_DOUBLE * length (parent)) - 1) * rand())));

      %mutazione a singolo punto
      concatenated_mutationChildren = __ga_doubles2concatenated_bitstring__ (parent);
      switch (concatenated_mutationChildren (n))
            case '0'
                  concatenated_mutationChildren (n) = '1';
            case '1'
                  concatenated_mutationChildren (n) = '0';
            otherwise
                  error ("Una bitstring deve essere composta da soli caratteri 0 e 1.");
      endswitch

      mutationChildren = __ga_concatenated_bitstring2doubles__ (concatenated_mutationChildren);
endfunction

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