Mercurial > octave
view scripts/plot/draw/plotmatrix.m @ 30564:796f54d4ddbf stable
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2021.
In all .txi and .texi files except gpl.txi and gpl.texi in the
doc/liboctave and doc/interpreter directories, change the copyright
to "Octave Project Developers", the same as used for other source
files. Update copyright notices for 2022 (not done since 2019). For
gpl.txi and gpl.texi, change the copyright notice to be "Free Software
Foundation, Inc." and leave the date at 2007 only because this file
only contains the text of the GPL, not anything created by the Octave
Project Developers.
Add Paul Thomas to contributors.in.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 28 Dec 2021 18:22:40 -0500 |
parents | 6c53b9bf6b19 |
children | 597f3ee61a48 |
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######################################################################## ## ## Copyright (C) 2008-2022 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