1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94
|
## Copyright (C) 1996, 2000, 2004, 2005, 2007
## Auburn University. All rights reserved.
##
##
## This program 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.
##
## This program 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 this program; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {[@var{systype}, @var{nout}, @var{nin}, @var{ncstates}, @var{ndstates}] =} minfo (@var{inmat})
## Determines the type of system matrix. @var{inmat} can be a varying,
## a system, a constant, and an empty matrix.
##
## @strong{Outputs}
## @table @var
## @item systype
## Can be one of: varying, system, constant, and empty.
## @item nout
## The number of outputs of the system.
## @item nin
## The number of inputs of the system.
## @item ncstates
## The number of continuous states of the system.
## @item ndstates
## The number of discrete states of the system.
## @end table
## @end deftypefn
## Author: R. Bruce Tenison <btenison@eng.auburn.edu>
## Created: July 29, 1994
## Modified by David Clem November 13, 1994
## Modified by A. S. Hodel July 1995
function [systype, nout, nin, ncstates, ndstates] = minfo (inmat)
warning ("minfo: obsolete. Use sys2ss, sys2tf, or sys2zp.");
if (nargin != 1 )
disp ("MINFO: Wrong number of arguments")
systype = nout = nin = ncstates = ndstates = [];
endif
[rr, cc] = size (inmat);
## Check for empty matrix first!
if (isempty (inmat))
systype = "empty";
nout = nin = ncstates = ndstates = 0;
return
## Check for Constant matrix
elseif (rr == 1 || cc == 1)
systype = "constant";
nout = nin = ncstates = ndstates = 1;
return
## Check for system type matrix
elseif (inmat(rr,cc) == -Inf)
systype = "system";
ncstates = inmat(1,cc);
ndstates = inmat(rr,1);
nstates = ncstates + ndstates;
nout = rr - nstates - 1;
nin = cc - nstates - 1;
## Check for Varying type matrix
elseif (inmat(rr,cc) == Inf)
systype = "varying";
npoints = inmat(rr,cc-1);
nin = cc - 1;
nout = rr / npoints;
nstates = 0;
## Must be a standard matrix
else
systype = "constant";
nin = cc;
nout = rr;
ncstates = 0;
ndstates = 0;
endif
endfunction
|