1 ## Copyright (C) 2010 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 ## Number of outputs and inputs of transfer function numerator and
20 ## denominator. For internal use only.
22 ## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
23 ## Created: February 2010
26 function [p, m, l] = __frd_dim__ (H, w)
29 error ("frd: H must be a 3-dimensional numeric array");
34 if (! isempty (w) && (! is_real_vector (w) || any (w < 0) \
35 || ! issorted (w) || w(1) > w(end) \
36 || length (unique (w)) != lw))
37 error ("frd: w must be a vector of positive real numbers in ascending order");
43 error ("frd: H (%dx%dx%d) and w (%d) must have equal length",