X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Fcontrol-2.3.52%2F%40lti%2Fssdata.m;fp=octave_packages%2Fcontrol-2.3.52%2F%40lti%2Fssdata.m;h=ddb29bd38e069dea3bd9a1931240b4f947036639;hp=0000000000000000000000000000000000000000;hb=f5f7a74bd8a4900f0b797da6783be80e11a68d86;hpb=1705066eceaaea976f010f669ce8e972f3734b05
diff --git a/octave_packages/control-2.3.52/@lti/ssdata.m b/octave_packages/control-2.3.52/@lti/ssdata.m
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+## Copyright (C) 2009, 2010, 2011 Lukas F. Reichlin
+##
+## This file is part of LTI Syncope.
+##
+## LTI Syncope 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.
+##
+## LTI Syncope 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 LTI Syncope. If not, see .
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {[@var{a}, @var{b}, @var{c}, @var{d}, @var{tsam}] =} ssdata (@var{sys})
+## Access state-space model data.
+## Argument @var{sys} is not limited to state-space models.
+## If @var{sys} is not a state-space model, it is converted automatically.
+##
+## @strong{Inputs}
+## @table @var
+## @item sys
+## Any type of LTI model.
+## @end table
+##
+## @strong{Outputs}
+## @table @var
+## @item a
+## State transition matrix (n-by-n).
+## @item b
+## Input matrix (n-by-m).
+## @item c
+## Measurement matrix (p-by-n).
+## @item d
+## Feedthrough matrix (p-by-m).
+## @item tsam
+## Sampling time in seconds. If @var{sys} is a continuous-time model,
+## a zero is returned.
+## @end table
+## @end deftypefn
+
+## Author: Lukas Reichlin
+## Created: September 2009
+## Version: 0.4
+
+function [a, b, c, d, tsam, scaled] = ssdata (sys)
+
+ if (! isa (sys, "ss"))
+ sys = ss (sys);
+ endif
+
+ [a, b, c, d, e, ~, scaled] = __sys_data__ (sys);
+
+ [a, b, c, d, e] = __dss2ss__ (a, b, c, d, e);
+
+ tsam = sys.tsam;
+
+endfunction
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