/usr/share/octave/packages/ga-0.10.0/selectionstochunif.m is in octave-ga 0.10.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | ## 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: 1.3
function parents = selectionstochunif (expectation, nParents, options)
nc_expectation = columns (expectation);
line(1, 1:nc_expectation) = cumsum (expectation(1, 1:nc_expectation));
max_step_size = line(1, nc_expectation);
step_size = max_step_size * rand ();
steps(1, 1:nParents) = rem (step_size * (1:nParents), max_step_size);
for index_steps = 1:nParents ## fix an entry of the steps (or parents) vector
#assert (steps(1, index_steps) < max_step_size); ## DEBUG
index_line = 1;
while (steps(1, index_steps) >= line(1, index_line))
#assert ((index_line >= 1) && (index_line < nc_expectation)); ## DEBUG
index_line++;
endwhile
parents(1, index_steps) = index_line;
endfor
endfunction
## number of input arguments
# TODO
## number of output arguments
# TODO
## type of arguments
# TODO
# TODO
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