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maint: merge stable to default.
author John W. Eaton <jwe@octave.org>
date Wed, 10 Feb 2021 10:10:40 -0500
parents 28de41192f3c 0a5b15007766
children 6c53b9bf6b19
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1 ########################################################################
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2 ##
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3 ## Copyright (C) 2008-2021 The Octave Project Developers
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4 ##
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5 ## See the file COPYRIGHT.md in the top-level directory of this
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6 ## distribution or <https://octave.org/copyright/>.
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7 ##
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8 ## This file is part of Octave.
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9 ##
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10 ## Octave is free software: you can redistribute it and/or modify it
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11 ## under the terms of the GNU General Public License as published by
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12 ## the Free Software Foundation, either version 3 of the License, or
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13 ## (at your option) any later version.
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14 ##
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15 ## Octave is distributed in the hope that it will be useful, but
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16 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 ## GNU General Public License for more details.
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19 ##
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20 ## You should have received a copy of the GNU General Public License
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21 ## along with Octave; see the file COPYING. If not, see
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22 ## <https://www.gnu.org/licenses/>.
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23 ##
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24 ########################################################################
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25
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26 ## -*- texinfo -*-
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27 ## @deftypefn {} {} plotmatrix (@var{x}, @var{y})
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28 ## @deftypefnx {} {} plotmatrix (@var{x})
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29 ## @deftypefnx {} {} plotmatrix (@dots{}, @var{style})
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30 ## @deftypefnx {} {} plotmatrix (@var{hax}, @dots{})
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31 ## @deftypefnx {} {[@var{h}, @var{ax}, @var{bigax}, @var{p}, @var{pax}] =} plotmatrix (@dots{})
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32 ## Scatter plot of the columns of one matrix against another.
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33 ##
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34 ## Given the arguments @var{x} and @var{y} that have a matching number of
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35 ## rows, @code{plotmatrix} plots a set of axes corresponding to
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36 ##
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37 ## @example
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38 ## plot (@var{x}(:, i), @var{y}(:, j))
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39 ## @end example
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40 ##
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41 ## When called with a single argument @var{x} this is equivalent to
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42 ##
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43 ## @example
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44 ## plotmatrix (@var{x}, @var{x})
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45 ## @end example
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46 ##
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47 ## @noindent
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48 ## except that the diagonal of the set of axes will be replaced with the
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49 ## histogram @code{hist (@var{x}(:, i))}.
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50 ##
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51 ## The marker to use can be changed with the @var{style} argument, that is a
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52 ## string defining a marker in the same manner as the @code{plot} command.
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53 ##
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54 ## If the first argument @var{hax} is an axes handle, then plot into this axes,
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55 ## rather than the current axes returned by @code{gca}.
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56 ##
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57 ## The optional return value @var{h} provides handles to the individual
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58 ## graphics objects in the scatter plots, whereas @var{ax} returns the
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59 ## handles to the scatter plot axes objects.
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60 ##
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61 ## @var{bigax} is a hidden axes object that surrounds the other axes, such
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62 ## that the commands @code{xlabel}, @code{title}, etc., will be associated
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63 ## with this hidden axes.
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64 ##
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65 ## Finally, @var{p} returns the graphics objects associated with the histogram
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66 ## and @var{pax} the corresponding axes objects.
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67 ##
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68 ## Example:
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69 ##
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70 ## @example
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71 ## plotmatrix (randn (100, 3), "g+")
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72 ## @end example
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73 ##
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74 ## @seealso{scatter, plot}
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75 ## @end deftypefn
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76
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77 function [h, ax, bigax, p, pax] = plotmatrix (varargin)
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78
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79 [bigax2, varargin, nargin] = __plt_get_axis_arg__ ("plotmatrix", varargin{:});
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80
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81 if (nargin < 1 || nargin > 3)
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82 print_usage ();
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83 endif
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84
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85 oldfig = [];
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86 if (! isempty (bigax2))
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87 oldfig = get (0, "currentfigure");
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88 endif
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89 unwind_protect
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90 bigax2 = newplot (bigax2);
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91
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92 [h2, ax2, p2, pax2] = __plotmatrix__ (bigax2, varargin{:});
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93
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94 axes (bigax2);
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95 ctext = text (0, 0, "", "visible", "off",
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96 "handlevisibility", "off", "xliminclude", "off",
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97 "yliminclude", "off", "zliminclude", "off",
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98 "deletefcn", {@plotmatrixdelete, [ax2; pax2]});
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99 set (bigax2, "visible", "off");
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100
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101 unwind_protect_cleanup
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102 if (! isempty (oldfig))
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103 set (0, "currentfigure", oldfig);
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104 endif
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105 end_unwind_protect
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106
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107 if (nargout > 0)
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108 h = h2;
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109 ax = ax2;
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110 bigax = bigax2;
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111 p = p2;
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112 pax = pax2;
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113 endif
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114
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115 endfunction
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116
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117
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118 %!demo
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119 %! clf;
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120 %! plotmatrix (randn (100, 3), "g+");
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121 %! title ("plotmatrix() demo #1");
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122
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123
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124 function plotmatrixdelete (h, ~, ax)
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125
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126 for i = 1 : numel (ax)
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127 hc = ax(i);
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128 if (isaxes (hc) && strcmpi (get (hc, "beingdeleted"), "off"))
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129 parent = get (hc, "parent");
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130 ## If the parent is invalid or being deleted, then do nothing
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131 if (ishghandle (parent) && strcmpi (get (parent, "beingdeleted"), "off"))
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132 delete (hc);
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133 endif
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134 endif
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135 endfor
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136
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137 endfunction
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138
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139 function [h, ax, p, pax] = __plotmatrix__ (bigax, varargin)
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140
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141 have_line_spec = false;
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142 have_hist = false;
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David Bateman <dbateman@free.fr>
parents:
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143 parent = get (bigax, "parent");
20512
8164c580922b plotmatrix.m: Fix regression in %!demo introduced by in-place operators.
Rik <rik@octave.org>
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144 narg = nargin ();
8164c580922b plotmatrix.m: Fix regression in %!demo introduced by in-place operators.
Rik <rik@octave.org>
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145 for i = 1 : narg - 1
8127
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146 arg = varargin{i};
17462
177147bf7b55 Overhaul use of __pltopt__.m to correctly check for cellstr, not just cell.
Rik <rik@octave.org>
parents: 17302
diff changeset
147 if (ischar (arg) || iscellstr (arg))
8127
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148 [linespec, valid] = __pltopt__ ("plotmatrix", varargin{i}, false);
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David Bateman <dbateman@free.fr>
parents:
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149 if (valid)
11587
c792872f8942 all script files: untabify and strip trailing whitespace
John W. Eaton <jwe@octave.org>
parents: 11523
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150 have_line_spec = true;
10549
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9245
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151 linespec = varargin(i);
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152 varargin(i) = [];
20512
8164c580922b plotmatrix.m: Fix regression in %!demo introduced by in-place operators.
Rik <rik@octave.org>
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153 narg -= 1;
10549
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Rik <code@nomad.inbox5.com>
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154 break;
8127
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David Bateman <dbateman@free.fr>
parents:
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155 else
17056
5dae8af4773d plotmatrix.m: Overhaul function to use new__plt_get_axis_arg__.
Rik <rik@octave.org>
parents: 16814
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156 print_usage ("plotmatrix");
8127
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157 endif
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parents:
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158 endif
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David Bateman <dbateman@free.fr>
parents:
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159 endfor
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parents:
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160
20512
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Rik <rik@octave.org>
parents: 20231
diff changeset
161 if (narg == 2)
8127
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David Bateman <dbateman@free.fr>
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162 X = varargin{1};
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David Bateman <dbateman@free.fr>
parents:
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163 Y = X;
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parents:
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164 have_hist = true;
20512
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Rik <rik@octave.org>
parents: 20231
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165 elseif (narg == 3)
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166 X = varargin{1};
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parents:
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167 Y = varargin{2};
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parents:
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168 else
17056
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parents: 16814
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169 print_usage ("plotmatrix");
8127
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170 endif
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parents:
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171
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
172 if (rows (X) != rows (Y))
8127
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173 error ("plotmatrix: dimension mismatch in the arguments");
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parents:
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174 endif
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parents:
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175
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parents:
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176 [dummy, m] = size (X);
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177 [dummy, n] = size (Y);
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David Bateman <dbateman@free.fr>
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178
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David Bateman <dbateman@free.fr>
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179 h = [];
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180 ax = [];
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parents:
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181 p = [];
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182 pax = [];
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parents:
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183
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parents:
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184 xsize = 0.9 / m;
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David Bateman <dbateman@free.fr>
parents:
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185 ysize = 0.9 / n;
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David Bateman <dbateman@free.fr>
parents:
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186 xoff = 0.05;
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David Bateman <dbateman@free.fr>
parents:
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187 yoff = 0.05;
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David Bateman <dbateman@free.fr>
parents:
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188 border = [0.130, 0.110, 0.225, 0.185] .* [xsize, ysize, xsize, ysize];
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parents:
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189 border(3:4) = - border(3:4) - border(1:2);
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David Bateman <dbateman@free.fr>
parents:
diff changeset
190
16086
f89760972bf4 plotmatrix.m: Fix bug when number of columns in 2 inputs differs (bug #38368)
Julien Bect <julien.bect@supelec.fr>
parents: 14868
diff changeset
191 for i = 1 : m
f89760972bf4 plotmatrix.m: Fix bug when number of columns in 2 inputs differs (bug #38368)
Julien Bect <julien.bect@supelec.fr>
parents: 14868
diff changeset
192 for j = 1 : n
f89760972bf4 plotmatrix.m: Fix bug when number of columns in 2 inputs differs (bug #38368)
Julien Bect <julien.bect@supelec.fr>
parents: 14868
diff changeset
193 pos = [xsize * (i - 1) + xoff, ysize * (n - j) + yoff, xsize, ysize];
8127
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parents:
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194 tmp = axes ("outerposition", pos, "position", pos + border,
10549
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195 "parent", parent);
8127
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parents:
diff changeset
196 if (i == j && have_hist)
10549
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Rik <code@nomad.inbox5.com>
parents: 9245
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197 pax = [pax ; tmp];
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Rik <code@nomad.inbox5.com>
parents: 9245
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198 [nn, xx] = hist (X(:, i));
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parents: 9245
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199 tmp = bar (xx, nn, 1.0);
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Rik <code@nomad.inbox5.com>
parents: 9245
diff changeset
200 p = [p; tmp];
8127
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David Bateman <dbateman@free.fr>
parents:
diff changeset
201 else
10549
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Rik <code@nomad.inbox5.com>
parents: 9245
diff changeset
202 ax = [ax ; tmp];
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9245
diff changeset
203 if (have_line_spec)
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Rik <code@nomad.inbox5.com>
parents: 9245
diff changeset
204 tmp = plot (X (:, i), Y (:, j), linespec);
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9245
diff changeset
205 else
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9245
diff changeset
206 tmp = plot (X (:, i), Y (:, j), ".");
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9245
diff changeset
207 endif
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9245
diff changeset
208 h = [h ; tmp];
8127
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David Bateman <dbateman@free.fr>
parents:
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209 endif
86568be36992 Add the plotmatrix function
David Bateman <dbateman@free.fr>
parents:
diff changeset
210 endfor
86568be36992 Add the plotmatrix function
David Bateman <dbateman@free.fr>
parents:
diff changeset
211 endfor
21758
ffad2baa90f7 maint: Use newlines to make code more readable.
Rik <rik@octave.org>
parents: 20852
diff changeset
212
8127
86568be36992 Add the plotmatrix function
David Bateman <dbateman@free.fr>
parents:
diff changeset
213 endfunction