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syscont_disc.m
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1999-03-05
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# Copyright (C) 1996,1998 A. Scottedward Hodel
#
# This file is part of Octave.
#
# Octave 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.
#
# Octave 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 Octave; see the file COPYING. If not, write to the Free
# Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
function [n_tot,st_c,st_d,y_c,y_d] = syscont_disc(sys)
# function [n_tot,st_c,st_d,y_c,y_d] = syscont_disc(sys)
# Used internally in syscont and sysdisc.
#
# inputs: sys is a system data structure
# outputs: n_tot: total number of states
# st_c: vector of continuous state indices (empty if none)
# st_d: vector of discrete state indices (empty if none)
# y_c: vector of continuous output indices
# y_d: vector of discrete output indices
# Written by A. S. Hodel (a.s.hodel@eng.auburn.edu) Feb 1997
# get ranges for discrete/continuous states and outputs
[nn,nz,mm,pp,yd] = sysdimensions(sys);
n_tot = nn + nz;
st_c = 1:(nn);
st_d = nn + (1:nz);
y_c = find(yd == 0); # y_c, y_d will be empty if there are none.
y_d = find(yd == 1);
endfunction