Mercurial > octave
view scripts/plot/draw/plotmatrix.m @ 32062:ada96a467a28
quiver: Improve plotting with non-float numeric inputs (bug #59695)
* scripts/plot/draw/private/__quiver__.m: Change firstnonnumeric check to look
for char instead of numeric to allow for logical inputs. Recast all inputs
up to firstnonnumeric as doubles. Check if firstnonnumeric element is 'off'
and if so set scale factor to 0 and increment firstnonnumeric.
* scripts/plot/draw/quiver.m: Update docstring to include scaling factor
option 'off'. Add BIST for int and logical input types.
* scripts/plot/draw/quiver3.m: Update docstring to include scaling factor
option 'off'. Add BISTs for too-few inputs.
* etc/NEWS.9.md: Appended details of changes to quiver note under General
Improvements and noted it also applies to quiver3.
author | Nicholas R. Jankowski <jankowski.nicholas@gmail.com> |
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date | Wed, 26 Apr 2023 17:18:50 -0400 |
parents | 597f3ee61a48 |
children | 2e484f9f1f18 |
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######################################################################## ## ## Copyright (C) 2008-2023 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {} plotmatrix (@var{x}, @var{y}) ## @deftypefnx {} {} plotmatrix (@var{x}) ## @deftypefnx {} {} plotmatrix (@dots{}, @var{style}) ## @deftypefnx {} {} plotmatrix (@var{hax}, @dots{}) ## @deftypefnx {} {[@var{h}, @var{ax}, @var{bigax}, @var{p}, @var{pax}] =} plotmatrix (@dots{}) ## Scatter plot of the columns of one matrix against another. ## ## Given the arguments @var{x} and @var{y} that have a matching number of ## rows, @code{plotmatrix} plots a set of axes corresponding to ## ## @example ## plot (@var{x}(:, i), @var{y}(:, j)) ## @end example ## ## When called with a single argument @var{x} this is equivalent to ## ## @example ## plotmatrix (@var{x}, @var{x}) ## @end example ## ## @noindent ## except that the diagonal of the set of axes will be replaced with the ## histogram @code{hist (@var{x}(:, i))}. ## ## The marker to use can be changed with the @var{style} argument, that is a ## string defining a marker in the same manner as the @code{plot} command. ## ## If the first argument @var{hax} is an axes handle, then plot into this axes, ## rather than the current axes returned by @code{gca}. ## ## The optional return value @var{h} provides handles to the individual ## graphics objects in the scatter plots, whereas @var{ax} returns the ## handles to the scatter plot axes objects. ## ## @var{bigax} is a hidden axes object that surrounds the other axes, such ## that the commands @code{xlabel}, @code{title}, etc., will be associated ## with this hidden axes. ## ## Finally, @var{p} returns the graphics objects associated with the histogram ## and @var{pax} the corresponding axes objects. ## ## Example: ## ## @example ## plotmatrix (randn (100, 3), "g+") ## @end example ## ## @seealso{scatter, plot} ## @end deftypefn function [h, ax, bigax, p, pax] = plotmatrix (varargin) [bigax2, varargin, nargin] = __plt_get_axis_arg__ ("plotmatrix", varargin{:}); if (nargin < 1 || nargin > 3) print_usage (); endif oldfig = []; if (! isempty (bigax2)) oldfig = get (0, "currentfigure"); endif unwind_protect bigax2 = newplot (bigax2); [h2, ax2, p2, pax2] = __plotmatrix__ (bigax2, varargin{:}); axes (bigax2); ctext = text (0, 0, "", "visible", "off", "handlevisibility", "off", "xliminclude", "off", "yliminclude", "off", "zliminclude", "off", "deletefcn", {@plotmatrixdelete, [ax2; pax2]}); set (bigax2, "visible", "off"); unwind_protect_cleanup if (! isempty (oldfig)) set (0, "currentfigure", oldfig); endif end_unwind_protect if (nargout > 0) h = h2; ax = ax2; bigax = bigax2; p = p2; pax = pax2; endif endfunction %!demo %! clf; %! plotmatrix (randn (100, 3), "g+"); %! title ("plotmatrix() demo #1"); function plotmatrixdelete (h, ~, ax) for i = 1 : numel (ax) hc = ax(i); if (isaxes (hc) && strcmpi (get (hc, "beingdeleted"), "off")) parent = get (hc, "parent"); ## If the parent is invalid or being deleted, then do nothing if (ishghandle (parent) && strcmpi (get (parent, "beingdeleted"), "off")) delete (hc); endif endif endfor endfunction function [h, ax, p, pax] = __plotmatrix__ (bigax, varargin) have_line_spec = false; have_hist = false; parent = get (bigax, "parent"); narg = nargin (); for i = 1 : narg - 1 arg = varargin{i}; if (ischar (arg) || iscellstr (arg)) [linespec, valid] = __pltopt__ ("plotmatrix", varargin{i}, false); if (valid) have_line_spec = true; linespec = varargin(i); varargin(i) = []; narg -= 1; break; else print_usage ("plotmatrix"); endif endif endfor if (narg == 2) X = varargin{1}; Y = X; have_hist = true; elseif (narg == 3) X = varargin{1}; Y = varargin{2}; else print_usage ("plotmatrix"); endif if (rows (X) != rows (Y)) error ("plotmatrix: dimension mismatch in the arguments"); endif m = columns (X); n = columns (Y); h = []; ax = []; p = []; pax = []; xsize = 0.9 / m; ysize = 0.9 / n; xoff = 0.05; yoff = 0.05; border = [0.130, 0.110, 0.225, 0.185] .* [xsize, ysize, xsize, ysize]; border(3:4) = - border(3:4) - border(1:2); for i = 1 : m for j = 1 : n pos = [xsize * (i - 1) + xoff, ysize * (n - j) + yoff, xsize, ysize]; tmp = axes ("outerposition", pos, "position", pos + border, "parent", parent); if (i == j && have_hist) pax = [pax ; tmp]; [nn, xx] = hist (X(:, i)); tmp = bar (xx, nn, 1.0); p = [p; tmp]; else ax = [ax ; tmp]; if (have_line_spec) tmp = plot (X (:, i), Y (:, j), linespec); else tmp = plot (X (:, i), Y (:, j), "."); endif h = [h ; tmp]; endif endfor endfor endfunction