Mercurial > octave-nkf
view scripts/miscellaneous/parseparams.m @ 20596:87b557ee8e5d
clean up and vectorize code for dense output in ode45
* scripts/ode/private/ode_rk_interpolate.m: new file
* scripts/ode/private/ode_rk_interpolate.m(hermite_quartic_interpolation):
move to internal function, use vectorization and broadcasting.
* scripts/ode/private/hermite_quartic_interpolation.m: remove file
* scripts/ode/module.mk: list added and removed files
* scripts/ode/private/integrate_adaptive.m: use new interpolation code.
author | Carlo de Falco <carlo.defalco@polimi.it> |
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date | Tue, 06 Oct 2015 19:28:59 +0200 |
parents | df437a52bcaf |
children |
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## Copyright (C) 2006-2015 Alexander Barth ## Copyright (C) 2010 VZLU Prague ## ## 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 3 of the License, 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, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {[@var{reg}, @var{prop}] =} parseparams (@var{params}) ## @deftypefnx {Function File} {[@var{reg}, @var{var1}, @dots{}] =} parseparams (@var{params}, @var{name1}, @var{default1}, @dots{}) ## Return in @var{reg} the cell elements of @var{param} up to the first ## string element and in @var{prop} all remaining elements beginning with the ## first string element. ## ## For example: ## ## @example ## @group ## [reg, prop] = parseparams (@{1, 2, "linewidth", 10@}) ## reg = ## @{ ## [1,1] = 1 ## [1,2] = 2 ## @} ## prop = ## @{ ## [1,1] = linewidth ## [1,2] = 10 ## @} ## @end group ## @end example ## ## The parseparams function may be used to separate regular numeric arguments ## from additional arguments given as property/value pairs of the ## @var{varargin} cell array. ## ## In the second form of the call, available options are specified directly ## with their default values given as name-value pairs. If @var{params} do ## not form name-value pairs, or if an option occurs that does not match any ## of the available options, an error occurs. ## ## When called from an m-file function, the error is prefixed with the name ## of the caller function. ## ## The matching of options is case-insensitive. ## ## @seealso{varargin, inputParser} ## @end deftypefn ## Author: Alexander Barth <abarth93@users.sourceforge.net> ## Author: Aida Alvera Azcarate <aida@netecho.info> function [reg, varargout] = parseparams (params, varargin) strs = cellfun ("isclass", params, "char"); i = find (strs, 1); if (i) reg = params(1:i-1); prop = params(i:end); else reg = params; prop = {}; endif if (nargin == 1) varargout = {prop}; else names = varargin(1:2:end); defaults = varargin(2:2:end); if (! size_equal (names, defaults)) error ("parseparams: needs odd number of arguments"); endif [names, sidx] = sort (names); varargout = defaults; if (i) ## Let's parse the properties. pnames = prop(1:2:end); values = prop(2:2:end); if (! size_equal (pnames, values) || ! all (strs(i:2:end))) error_as_caller ("options must be given as name-value pairs"); endif idx = lookup (toupper (names), toupper (pnames), "m"); if (! all (idx)) error_as_caller ("unrecognized option: %s", pnames{find (idx == 0, 1)}); else varargout(sidx(idx)) = values; endif endif endif endfunction function error_as_caller (msg, varargin) stack = dbstack (1); # omit me fname = stack(min (2, end)).name; error ([fname, ": ", msg], varargin{:}); endfunction %!test %! [reg, prop] = parseparams ({1, 2, "linewidth", 10}); %! assert (reg, {[1], [2]}); %! assert (prop, {"linewidth", 10}); %!test %! [reg, prop] = parseparams ({1, 2, 3}); %! assert (reg, {[1], [2], [3]}); %! assert (isempty (prop)); %!test %! [reg, prop] = parseparams ({"prop1", "val1"}); %! assert (isempty (reg)); %! assert (prop, {"prop1", "val1"}); %!test %! [reg, prop1] = parseparams ({"linewidth", 5}, "linewidth", 10); %! assert (isempty (reg)); %! assert (prop1, 5); %!error <needs odd number of arguments> parseparams ({1}, "linewidth") %!error <must be given as name-value pairs> parseparams ({1, "color"}, "linewidth", 5) %!error <unrecognized option: color> parseparams ({1, "color", 5}, "linewidth", 5)