Mercurial > forge
view main/control/inst/@lti/subsref.m @ 9623:40a1e6b36726 octave-forge
control: use recursion instead of for-loop for subs ref
author | paramaniac |
---|---|
date | Sat, 10 Mar 2012 19:45:06 +0000 |
parents | dd262f829a74 |
children | e90506ce0d0f |
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## Copyright (C) 2009, 2012 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 -*- ## Subscripted reference for LTI objects. ## Used by Octave for "sys = sys(2:4, :)" or "val = sys.prop". ## Author: Lukas Reichlin <lukas.reichlin@gmail.com> ## Created: September 2009 ## Version: 0.3 function a = subsref (a, s) if (numel (s) == 0) return; endif switch (s(1).type) case "()" idx = s(1).subs; if (numel (idx) == 2) a = __sys_prune__ (a, idx{1}, idx{2}); elseif (numel (idx) == 1) a = __freqresp__ (a, idx{1}); else error ("lti: subsref: need one or two indices"); endif case "." fld = s(1).subs; a = get (a, fld); ## warning ("lti: subsref: do not use subsref for development"); otherwise error ("lti: subsref: invalid subscript type"); endswitch a = subsref (a, s(2:end)); endfunction