/usr/share/octave/packages/nnet-0.1.13/__mse.m is in octave-nnet 0.1.13-2.
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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 47 48 49 50 51 52 53 | ## Copyright (C) 2005 Michel D. Schmid <michaelschmid@users.sourceforge.net>
##
##
## 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, 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; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {}@var{perf} = __mse (@var{E})
## @code{__mse} returns the Mean-Square-Error of a vector E
##
## @example
##
## This function is used to calculate the network performance
## @end example
##
## @end deftypefn
## @seealso{__mae}
## Author: Michel D. Schmid
function perf = __mse(E)
## check number of inputs
error(nargchk(1,1,nargin));
if iscell(E)
perf = 0;
elements = 0;
for i=1:size(E,1)
for j=1:size(E,2)
perf = perf + sum(sum(E{i,j}.^2));
elements = elements + prod(size(E{i,j}));
endfor
endfor
perf = perf / elements;
else
error("Error vector should be a cell array!")
endif
endfunction
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