Mercurial > octave-nkf
annotate scripts/plot/plotmatrix.m @ 11587:c792872f8942
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| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 20 Jan 2011 17:35:29 -0500 |
| parents | fd0a3ac60b0e |
| children | 22c50cbad2ce |
| rev | line source |
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| 11523 | 1 ## Copyright (C) 2008-2011 David Bateman |
| 8127 | 2 ## |
| 3 ## This file is part of Octave. | |
| 4 ## | |
| 5 ## Octave is free software; you can redistribute it and/or modify it | |
| 6 ## under the terms of the GNU General Public License as published by | |
| 7 ## the Free Software Foundation; either version 3 of the License, or (at | |
| 8 ## your option) any later version. | |
| 9 ## | |
| 10 ## Octave is distributed in the hope that it will be useful, but | |
| 11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 ## General Public License for more details. | |
| 14 ## | |
| 15 ## You should have received a copy of the GNU General Public License | |
| 16 ## along with Octave; see the file COPYING. If not, see | |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 18 | |
| 19 ## -*- texinfo -*- | |
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20 ## @deftypefn {Function File} {} plotmatrix (@var{x}, @var{y}) |
| 8127 | 21 ## @deftypefnx {Function File} {} plotmatrix (@var{x}) |
| 22 ## @deftypefnx {Function File} {} plotmatrix (@dots{}, @var{style}) | |
| 23 ## @deftypefnx {Function File} {} plotmatrix (@var{h}, @dots{}) | |
| 24 ## @deftypefnx {Function File} {[@var{h}, @var{ax}, @var{bigax}, @var{p}, @var{pax}] =} plotmatrix (@dots{}) | |
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25 ## Scatter plot of the columns of one matrix against another. Given the |
| 8127 | 26 ## arguments @var{x} and @var{y}, that have a matching number of rows, |
| 27 ## @code{plotmatrix} plots a set of axes corresponding to | |
| 28 ## | |
| 29 ## @example | |
| 30 ## plot (@var{x} (:, i), @var{y} (:, j) | |
| 31 ## @end example | |
| 32 ## | |
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33 ## Given a single argument @var{x}, then this is equivalent to |
| 8127 | 34 ## |
| 35 ## @example | |
| 36 ## plotmatrix (@var{x}, @var{x}) | |
| 37 ## @end example | |
| 38 ## | |
| 39 ## @noindent | |
| 40 ## except that the diagonal of the set of axes will be replaced with the | |
| 41 ## histogram @code{hist (@var{x} (:, i))}. | |
| 42 ## | |
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43 ## The marker to use can be changed with the @var{style} argument, that is a |
| 8127 | 44 ## string defining a marker in the same manner as the @code{plot} |
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45 ## command. If a leading axes handle @var{h} is passed to |
| 8127 | 46 ## @code{plotmatrix}, then this axis will be used for the plot. |
| 47 ## | |
| 48 ## The optional return value @var{h} provides handles to the individual | |
| 49 ## graphics objects in the scatter plots, whereas @var{ax} returns the | |
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50 ## handles to the scatter plot axis objects. @var{bigax} is a hidden |
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51 ## axis object that surrounds the other axes, such that the commands |
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52 ## @code{xlabel}, @code{title}, etc., will be associated with this hidden |
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53 ## axis. Finally @var{p} returns the graphics objects associated with |
| 8127 | 54 ## the histogram and @var{pax} the corresponding axes objects. |
| 55 ## | |
| 56 ## @example | |
| 57 ## @group | |
| 58 ## plotmatrix (randn (100, 3), 'g+') | |
| 59 ## @end group | |
| 60 ## @end example | |
| 61 ## | |
| 62 ## @end deftypefn | |
| 63 | |
| 64 function [h, ax, bigax, p, pax] = plotmatrix (varargin) | |
| 65 | |
| 66 [bigax2, varargin, nargin] = __plt_get_axis_arg__ ("plotmatrix", varargin{:}); | |
| 67 | |
| 68 if (nargin > 3 || nargin < 1) | |
| 69 print_usage (); | |
| 70 else | |
| 71 oldh = gca (); | |
| 72 unwind_protect | |
| 73 axes (bigax2); | |
| 74 newplot (); | |
| 75 [h2, ax2, p2, pax2, need_usage] = __plotmatrix__ (bigax2, varargin{:}); | |
| 76 if (need_usage) | |
| 10549 | 77 print_usage (); |
| 8127 | 78 endif |
| 79 if (nargout > 0) | |
| 10549 | 80 h = h2; |
| 81 ax = ax2; | |
| 82 bigax = bigax2; | |
| 83 p = p2; | |
| 84 pax = pax2; | |
| 8127 | 85 endif |
| 86 axes (bigax2); | |
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87 ctext = text (0, 0, "", "visible", "off", |
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88 "handlevisibility", "off", "xliminclude", "off", |
| 10549 | 89 "yliminclude", "off", "zliminclude", "off", |
| 90 "deletefcn", {@plotmatrixdelete, [ax2; pax2]}); | |
| 8127 | 91 set (bigax2, "visible", "off"); |
| 92 unwind_protect_cleanup | |
| 93 axes (oldh); | |
| 94 end_unwind_protect | |
| 95 endif | |
| 96 endfunction | |
| 97 | |
| 98 %!demo | |
| 99 %! plotmatrix (randn (100, 3), 'g+') | |
| 100 | |
| 101 function plotmatrixdelete (h, d, ax) | |
| 102 for i = 1 : numel (ax) | |
| 103 hc = ax(i); | |
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104 if (ishandle (hc) && strcmp (get (hc, "type"), "axes") |
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105 && strcmpi (get (hc, "beingdeleted"), "off")) |
| 8127 | 106 parent = get (hc, "parent"); |
| 107 ## If the parent is invalid or being deleted, then do nothing | |
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108 if (ishandle (parent) && strcmpi (get (parent, "beingdeleted"), "off")) |
| 10549 | 109 delete (hc); |
| 8127 | 110 endif |
| 111 endif | |
| 112 endfor | |
| 113 endfunction | |
| 114 | |
| 115 function [h, ax, p, pax, need_usage] = __plotmatrix__ (bigax, varargin) | |
| 116 need_usage = false; | |
| 117 have_line_spec = false; | |
| 118 have_hist = false; | |
| 119 parent = get (bigax, "parent"); | |
| 120 for i = 1 : nargin - 1 | |
| 121 arg = varargin{i}; | |
| 122 if (ischar (arg) || iscell (arg)) | |
| 123 [linespec, valid] = __pltopt__ ("plotmatrix", varargin{i}, false); | |
| 124 if (valid) | |
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125 have_line_spec = true; |
| 10549 | 126 linespec = varargin(i); |
| 127 varargin(i) = []; | |
| 128 nargin = nargin - 1; | |
| 129 break; | |
| 8127 | 130 else |
| 10549 | 131 need_usage = true; |
| 132 returm; | |
| 8127 | 133 endif |
| 134 endif | |
| 135 endfor | |
| 136 | |
| 137 if (nargin == 2) | |
| 138 X = varargin{1}; | |
| 139 Y = X; | |
| 140 have_hist = true; | |
| 141 elseif (nargin == 3) | |
| 142 X = varargin{1}; | |
| 143 Y = varargin{2}; | |
| 144 else | |
| 145 need_usage = true; | |
| 146 returm; | |
| 147 endif | |
| 148 | |
| 149 if (rows(X) != rows(Y)) | |
| 150 error ("plotmatrix: dimension mismatch in the arguments"); | |
| 151 endif | |
| 152 | |
| 153 [dummy, m] = size (X); | |
| 154 [dummy, n] = size (Y); | |
| 155 | |
| 156 h = []; | |
| 157 ax = []; | |
| 158 p = []; | |
| 159 pax = []; | |
| 160 | |
| 161 xsize = 0.9 / m; | |
| 162 ysize = 0.9 / n; | |
| 163 xoff = 0.05; | |
| 164 yoff = 0.05; | |
| 165 border = [0.130, 0.110, 0.225, 0.185] .* [xsize, ysize, xsize, ysize]; | |
| 166 border(3:4) = - border(3:4) - border(1:2); | |
| 167 | |
| 168 for i = 1 : n | |
| 169 for j = 1 : m | |
| 170 pos = [xsize * (j - 1) + xoff, ysize * (n - i) + yoff, xsize, ysize]; | |
| 171 tmp = axes ("outerposition", pos, "position", pos + border, | |
| 10549 | 172 "parent", parent); |
| 8127 | 173 if (i == j && have_hist) |
| 10549 | 174 pax = [pax ; tmp]; |
| 175 [nn, xx] = hist (X(:, i)); | |
| 176 tmp = bar (xx, nn, 1.0); | |
| 177 p = [p; tmp]; | |
| 8127 | 178 else |
| 10549 | 179 ax = [ax ; tmp]; |
| 180 if (have_line_spec) | |
| 181 tmp = plot (X (:, i), Y (:, j), linespec); | |
| 182 else | |
| 183 tmp = plot (X (:, i), Y (:, j), "."); | |
| 184 endif | |
| 185 h = [h ; tmp]; | |
| 8127 | 186 endif |
| 187 endfor | |
| 188 endfor | |
| 189 endfunction |