Add a useful package (from Source forge) for octave

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

diff --git a/octave_packages/ga-0.10.0/gacreationuniform.m b/octave_packages/ga-0.10.0/gacreationuniform.m
new file mode 100644 (file)
index 0000000..a995619
--- /dev/null
+++ b/octave_packages/ga-0.10.0/gacreationuniform.m
@@ -0,0 +1,65 @@
+## 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 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/>.
+
+## -*- texinfo -*-
+## @deftypefn{Function File} {@var{Population} =} gacreationuniform (@var{GenomeLength}, @var{FitnessFcn}, @var{options})
+## Create a random initial population with a uniform distribution.
+##
+## @strong{Inputs}
+## @table @var
+## @item GenomeLength
+## The number of indipendent variables for the fitness function.
+## @item FitnessFcn
+## The fitness function.
+## @item options
+## The options structure.
+## @end table
+##
+## @strong{Outputs}
+## @table @var
+## @item Population
+## The initial population for the genetic algorithm.
+## @end table
+##
+## @seealso{ga, gaoptimset}
+## @end deftypefn
+
+## Author: Luca Favatella <slackydeb@gmail.com>
+## Version: 4.9
+
+function Population = gacreationuniform (GenomeLength, FitnessFcn, options)
+  [LB(1, 1:GenomeLength) UB(1, 1:GenomeLength)] = \
+      __ga_popinitrange__ (options.PopInitRange, GenomeLength);
+
+  ## pseudocode
+  ##
+  ## Population = Delta * RandomPopulationBetween0And1 + Offset
+  Population(1:options.PopulationSize, 1:GenomeLength) = \
+      ((ones (options.PopulationSize, 1) * (UB - LB)) .* \
+       rand (options.PopulationSize, GenomeLength)) + \
+      (ones (options.PopulationSize, 1) * LB);
+endfunction
+
+
+## number of input arguments
+# TODO
+
+## number of output arguments
+# TODO
+
+## type of arguments
+# TODO
+
+# TODO