/usr/share/octave/packages/statistics-1.3.0/@cvpartition/training.m is in octave-statistics 1.3.0-1.
This file is owned by root:root, with mode 0o644.
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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 47 | ## Copyright (C) 2014 Nir Krakauer
##
## 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 3 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{inds} =} training (@var{C}, [@var{i}])
## Return logical vector for training-subset indices from a cvpartition object.
##
## @var{C} should be a cvpartition object. @var{i} is the fold index (default is 1).
##
## @seealso{cvpartition, @@cvpartition/test}
## @end deftypefn
## Author: Nir Krakauer
function inds = training (C, i = [])
if (nargin < 1 || nargin > 2)
print_usage ();
endif
if nargin < 2 || isempty (i)
i = 1;
endif
switch C.Type
case {'kfold' 'given'}
inds = C.inds != i;
case 'holdout'
inds = !C.inds;
case 'leaveout'
inds = ones (C.NumObservations, 1, "logical");
inds(i) = false;
case 'resubstitution'
inds = ones (C.NumObservations, 1, "logical");
endswitch
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