[439535]: inst / mutationsinglepoint.m  Maximize  Restore  History

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## 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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