Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / ga-0.10.0 / crossoverscattered.m

diff --git a/octave_packages/ga-0.10.0/crossoverscattered.m b/octave_packages/ga-0.10.0/crossoverscattered.m
new file mode 100644 (file)
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+++ b/octave_packages/ga-0.10.0/crossoverscattered.m
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+## Copyright (C) 2008, 2009, 2011 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 of the License, 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; If not, see <http://www.gnu.org/licenses/>.
+
+## Author: Luca Favatella <slackydeb@gmail.com>
+## Version: 7.0
+
+function xoverKids = crossoverscattered (parents, options, nvars, FitnessFcn,
+                                         unused,
+                                         thisPopulation)
+
+  ## simplified example (nvars == 4)
+  ## p1 = [varA varB varC varD]
+  ## p2 = [var1 var2 var3 var4]
+  ## b = [1 1 0 1]
+  ## child = [varA varB var3 varD]
+  nc_parents = columns (parents);
+  n_children = nc_parents / 2;
+  p1(1:n_children, 1:nvars) = \
+      thisPopulation(parents(1, 1:n_children), 1:nvars);
+  p2(1:n_children, 1:nvars) = \
+      thisPopulation(parents(1, n_children + (1:n_children)), 1:nvars);
+  b(1:n_children, 1:nvars) = randi (1, n_children, nvars); ## TODO: test randi
+  xoverKids(1:n_children, 1:nvars) = \
+      b .* p1 + (ones (n_children, nvars) - b) .* p2;
+endfunction
+
+
+## number of input arguments
+# TODO
+
+## number of output arguments
+# TODO
+
+## type of arguments
+# TODO
+
+# TODO