Mercurial > hg > octave-lyh
annotate scripts/plot/plotmatrix.m @ 17059:c935a0db31c6
errorbar.m: Update to use new __plt_get_axis_arg__.
* scripts/plot/errorbar.m: Update to use new __plt_get_axis_arg__.
| author | Rik <rik@octave.org> |
|---|---|
| date | Wed, 24 Jul 2013 23:12:46 -0700 |
| parents | 5dae8af4773d |
| children | eaab03308c0b |
| rev | line source |
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1 ## Copyright (C) 2008-2012 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}) | |
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23 ## @deftypefnx {Function File} {} plotmatrix (@var{hax}, @dots{}) |
| 8127 | 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 | |
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30 ## plot (@var{x}(:, i), @var{y}(:, j)) |
| 8127 | 31 ## @end example |
| 32 ## | |
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33 ## Given a single argument @var{x} 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 | |
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41 ## histogram @code{hist (@var{x}(:, i))}. |
| 8127 | 42 ## |
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43 ## The marker to use can be changed with the @var{style} argument, that is a |
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44 ## string defining a marker in the same manner as the @code{plot} command. |
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45 ## |
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46 ## If the first argument is an axis handle @var{hax}, then plot into these axes, |
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47 ## rather than the current axis handle returned by @code{gca}. |
| 8127 | 48 ## |
| 49 ## The optional return value @var{h} provides handles to the individual | |
| 50 ## graphics objects in the scatter plots, whereas @var{ax} returns the | |
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51 ## handles to the scatter plot axis objects. @var{bigax} is a hidden |
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52 ## axis object that surrounds the other axes, such that the commands |
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53 ## @code{xlabel}, @code{title}, etc., will be associated with this hidden |
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54 ## axis. Finally @var{p} returns the graphics objects associated with |
| 8127 | 55 ## the histogram and @var{pax} the corresponding axes objects. |
| 56 ## | |
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57 ## Example: |
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58 ## |
| 8127 | 59 ## @example |
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60 ## plotmatrix (randn (100, 3), "g+") |
| 8127 | 61 ## @end example |
| 62 ## | |
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63 ## @seealso{plot} |
| 8127 | 64 ## @end deftypefn |
| 65 | |
| 66 function [h, ax, bigax, p, pax] = plotmatrix (varargin) | |
| 67 | |
| 68 [bigax2, varargin, nargin] = __plt_get_axis_arg__ ("plotmatrix", varargin{:}); | |
| 69 | |
| 70 if (nargin > 3 || nargin < 1) | |
| 71 print_usage (); | |
| 72 endif | |
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73 |
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74 oldfig = ifelse (isempty (bigax2), [], get (0, "currentfigure")); |
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75 unwind_protect |
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76 bigax2 = newplot (bigax2); |
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77 |
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78 [h2, ax2, p2, pax2] = __plotmatrix__ (bigax2, varargin{:}); |
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79 |
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80 if (nargout > 0) |
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81 h = h2; |
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82 ax = ax2; |
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83 bigax = bigax2; |
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84 p = p2; |
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85 pax = pax2; |
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86 endif |
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87 axes (bigax2); |
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88 ctext = text (0, 0, "", "visible", "off", |
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89 "handlevisibility", "off", "xliminclude", "off", |
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90 "yliminclude", "off", "zliminclude", "off", |
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91 "deletefcn", {@plotmatrixdelete, [ax2; pax2]}); |
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92 set (bigax2, "visible", "off"); |
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93 |
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94 unwind_protect_cleanup |
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95 if (! isempty (oldfig)) |
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96 set (0, "currentfigure", oldfig); |
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97 endif |
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98 end_unwind_protect |
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99 |
| 8127 | 100 endfunction |
| 101 | |
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102 |
| 8127 | 103 %!demo |
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104 %! clf; |
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105 %! plotmatrix (randn (100, 3), 'g+'); |
| 8127 | 106 |
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107 |
| 8127 | 108 function plotmatrixdelete (h, d, ax) |
| 109 for i = 1 : numel (ax) | |
| 110 hc = ax(i); | |
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111 if (ishandle (hc) && strcmp (get (hc, "type"), "axes") |
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112 && strcmpi (get (hc, "beingdeleted"), "off")) |
| 8127 | 113 parent = get (hc, "parent"); |
| 114 ## If the parent is invalid or being deleted, then do nothing | |
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115 if (ishandle (parent) && strcmpi (get (parent, "beingdeleted"), "off")) |
| 10549 | 116 delete (hc); |
| 8127 | 117 endif |
| 118 endif | |
| 119 endfor | |
| 120 endfunction | |
| 121 | |
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122 function [h, ax, p, pax] = __plotmatrix__ (bigax, varargin) |
| 8127 | 123 have_line_spec = false; |
| 124 have_hist = false; | |
| 125 parent = get (bigax, "parent"); | |
| 126 for i = 1 : nargin - 1 | |
| 127 arg = varargin{i}; | |
| 128 if (ischar (arg) || iscell (arg)) | |
| 129 [linespec, valid] = __pltopt__ ("plotmatrix", varargin{i}, false); | |
| 130 if (valid) | |
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131 have_line_spec = true; |
| 10549 | 132 linespec = varargin(i); |
| 133 varargin(i) = []; | |
| 134 nargin = nargin - 1; | |
| 135 break; | |
| 8127 | 136 else |
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137 print_usage ("plotmatrix"); |
| 8127 | 138 endif |
| 139 endif | |
| 140 endfor | |
| 141 | |
| 142 if (nargin == 2) | |
| 143 X = varargin{1}; | |
| 144 Y = X; | |
| 145 have_hist = true; | |
| 146 elseif (nargin == 3) | |
| 147 X = varargin{1}; | |
| 148 Y = varargin{2}; | |
| 149 else | |
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150 print_usage ("plotmatrix"); |
| 8127 | 151 endif |
| 152 | |
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153 if (rows (X) != rows (Y)) |
| 8127 | 154 error ("plotmatrix: dimension mismatch in the arguments"); |
| 155 endif | |
| 156 | |
| 157 [dummy, m] = size (X); | |
| 158 [dummy, n] = size (Y); | |
| 159 | |
| 160 h = []; | |
| 161 ax = []; | |
| 162 p = []; | |
| 163 pax = []; | |
| 164 | |
| 165 xsize = 0.9 / m; | |
| 166 ysize = 0.9 / n; | |
| 167 xoff = 0.05; | |
| 168 yoff = 0.05; | |
| 169 border = [0.130, 0.110, 0.225, 0.185] .* [xsize, ysize, xsize, ysize]; | |
| 170 border(3:4) = - border(3:4) - border(1:2); | |
| 171 | |
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172 for i = 1 : m |
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173 for j = 1 : n |
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174 pos = [xsize * (i - 1) + xoff, ysize * (n - j) + yoff, xsize, ysize]; |
| 8127 | 175 tmp = axes ("outerposition", pos, "position", pos + border, |
| 10549 | 176 "parent", parent); |
| 8127 | 177 if (i == j && have_hist) |
| 10549 | 178 pax = [pax ; tmp]; |
| 179 [nn, xx] = hist (X(:, i)); | |
| 180 tmp = bar (xx, nn, 1.0); | |
| 181 p = [p; tmp]; | |
| 8127 | 182 else |
| 10549 | 183 ax = [ax ; tmp]; |
| 184 if (have_line_spec) | |
| 185 tmp = plot (X (:, i), Y (:, j), linespec); | |
| 186 else | |
| 187 tmp = plot (X (:, i), Y (:, j), "."); | |
| 188 endif | |
| 189 h = [h ; tmp]; | |
| 8127 | 190 endif |
| 191 endfor | |
| 192 endfor | |
| 193 endfunction | |
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194 |