/usr/share/octave/packages/control-2.6.2/@tf/__set__.m is in octave-control 2.6.2-1build1.
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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 | ## Copyright (C) 2009-2014 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 <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## Set or modify properties of TF objects.
## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
## Created: October 2009
## Version: 0.2
function sys = __set__ (sys, prop, val)
switch (prop) # {<internal name>, <user name>}
case "num"
num = __vec2tfpoly__ (val);
__tf_dim__ (num, sys.den);
sys.num = num;
case "den"
den = __vec2tfpoly__ (val);
__tf_dim__ (sys.num, den);
sys.den = den;
case {"tfvar", "variable", "var"}
if (ischar (val))
sys.tfvar = val;
else
error ("tf: set: invalid transfer function variable");
endif
case "inv"
if (! isdt (sys))
error ("tf: set: property 'inv' requires discrete-time system");
elseif (! isscalar (val))
error ("tf: set: property 'inv' must be a scalar logical");
else
sys.inv = logical (val);
endif
otherwise
error ("tf: set: invalid property name '%s'", prop);
endswitch
endfunction
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