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Sourcecode: octave-ga version File versions

__ga_problem_update_state_at_each_generation__.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 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: 1.2

function state = __ga_problem_update_state_at_each_generation__ (state, problem,
                                                                 private_state)
  if (state.Generation > 0)
    state.Score(1:problem.options.PopulationSize, 1) = \
        __ga_scores__ (problem.fitnessfcn, state.Population);
  else ## state.Generation == 0
    state.Score(1:problem.options.PopulationSize, 1) = \
        __ga_scores__ (problem.fitnessfcn,
                       state.Population,
                       problem.options.InitialScores);
  endif
  state.Expectation(1, 1:problem.options.PopulationSize) = \
      problem.options.FitnessScalingFcn (state.Score, private_state.nParents);
  state.Best(state.Generation + 1, 1) = min (state.Score);
endfunction

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