Mercurial > octave
view scripts/sparse/spy.m @ 21171:2935d56203a4 stable
Fix regressions caused by ismatrix definition change (partial fix bug #47036).
* inputdlg.m: Test that linespec isnumeric.
* uigetfile.m: Check that position property value isnumeric.
* fminunc.m: Check that x0 isnumeric.
* fsolve.m: Check that x0 isnumeric.
* lsqnonneg.m: Check that inputs C & D are both isnumeric and ismatrix.
* pqpnonneg.m: Check that inputs C & D are both isnumeric and ismatrix.
* bicg.m: Check input A issquare. Rephrase error messages.
* bicgstab.m: Check input A issquare. Rephrase error messages.
* cgs.m: Check input A issquare. Rephrase error messages.
* gmres.m: Check input A issquare. Rephrase error messages.
Change BIST test to match new error message.
* qmr.m: Check input A issquare. Rephrase error messages.
* spconvert.m: Check nargin first. Simplify input validation.
Wrap long error message to < 80 chars.
* treeplot.m: Simplify input validation.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 01 Feb 2016 22:59:43 -0800 |
parents | df437a52bcaf |
children | 516bb87ea72e |
line wrap: on
line source
## Copyright (C) 1998-2015 Andy Adler ## ## 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} {} spy (@var{x}) ## @deftypefnx {Function File} {} spy (@dots{}, @var{markersize}) ## @deftypefnx {Function File} {} spy (@dots{}, @var{line_spec}) ## Plot the sparsity pattern of the sparse matrix @var{x}. ## ## If the argument @var{markersize} is given as a scalar value, it is used to ## determine the point size in the plot. ## ## If the string @var{line_spec} is given it is passed to @code{plot} and ## determines the appearance of the plot. ## @seealso{plot, gplot} ## @end deftypefn function spy (x, varargin) if (nargin < 1) print_usage (); endif markersize = NaN; if (nnz (x) < 1000) line_spec = "*"; else line_spec = "."; endif for i = 1:length (varargin) if (ischar (varargin{i})) if (length (varargin{i}) == 1) line_spec = [line_spec, varargin{i}]; else line_spec = varargin{i}; endif elseif (isscalar (varargin{i})) markersize = varargin{i}; else error ("spy: expected markersize or linespec"); endif endfor [i, j, s] = find (x); [m, n] = size (x); if (isnan (markersize)) plot (j, i, line_spec); else plot (j, i, line_spec, "markersize", markersize); endif axis ([0, n+1, 0, m+1], "ij"); endfunction %!demo %! clf; %! spy (sprand (10,10, 0.2)); ## Mark graphical function as tested by demo block %!assert (1)