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- ## Copyright (C) 1996 Auburn University. All Rights Reserved.
- ##
- ## 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, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
-
- ## O B S O L E T E: use ss2sys instead.
- ## function Asys = packsys(a,b,c[,d,dflg])
- ##
- ## dflg: 0 for continuous time system, 1 for discrete-time system.
- ##
- ## defaults:
- ## D: 0 matrix of appropriate dimension.
- ## dflg: 0 (continuous time)
- ##
- ## Note: discrete-state sampling time is not included!
-
- function Asys = packsys (a, b, c, d, dflg)
-
-
- ## Written by R. Bruce Tenison July 29, 1994
- ## Modified by David Clem November 13, 1994
- ## Modified by A. S. Hodel April 1995
-
- warning("packsys is obsolete! Use ss2sys instead.");
-
- if (nargin < 3 || nargin > 5)
- disp("packsys: Invalid number of arguments")
- endif
-
- ## check dflg
- if(nargin == 5)
- if( !is_scalar(dflg))
- [m,n] = size(dflg);
- error(["packsys: dflg (",num2str(m),",",num2str(n), ...
- ") must be a scalar."]);
- elseif( (dflg != 0) && (dflg != 1))
- error(["packsys: dflg=",num2str(dflg),"must be 0 or 1"]);
- endif
- else
- ## default condition
- dflg = 0;
- endif
-
- if (nargin == 3)
- ## No D matrix. Form a zero one!
- [brows,bcols] = size(b);
- [crows,ccols] = size(c);
- d = zeros(crows,bcols);
- endif
-
- [n,m,p] = abcddim(a,b,c,d);
- if (n == -1 || m == -1 || p == -1)
- error("packsys: incompatible dimensions")
- endif
-
- Asys = ss2sys(a,b,c,d,dflg);
-
- endfunction
-