1 ## Copyright (C) 2011 Lukas F. Reichlin
3 ## This file is part of LTI Syncope.
5 ## LTI Syncope is free software: you can redistribute it and/or modify
6 ## it under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation, either version 3 of the License, or
8 ## (at your option) any later version.
10 ## LTI Syncope is distributed in the hope that it will be useful,
11 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ## GNU General Public License for more details.
15 ## You should have received a copy of the GNU General Public License
16 ## along with LTI Syncope. If not, see <http://www.gnu.org/licenses/>.
19 ## check weightings for model reduction commands
21 ## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
22 ## Created: November 2011
25 function [a, b, c, d, job] = __modred_check_weight__ (sys, dt, p = [], m = [])
27 sys = ss (sys); # could be non-lti, therefore ssdata would fail
30 error ("modred: ct/dt"); # TODO: error message
33 [pw, mw] = size (sys);
35 if (! isempty (p) && mw != p)
36 error ("modred: left weight requires %d inputs", p);
39 if (! isempty (m) && pw != m)
40 error ("modred: right weight requires %d outputs", m);
43 [a, b, c, d] = ssdata (sys);
47 ## TODO: check system size