Mercurial > hg > octave-lyh

annotate scripts/plot/scatter.m @ 10697:1215ab6f3491

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Honor Matlab color settings for scatter().
author Ben Abbott <bpabbott@mac.com>
date Thu, 10 Jun 2010 19:16:56 -0400
parents 16f53d29049f
children da51afafca80
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
9245
16f53d29049f update copyright notices
John W. Eaton <jwe@octave.org>
parents: 9040
diff changeset
1 ## Copyright (C) 2007, 2009 David Bateman
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
2 ##
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
3 ## This file is part of Octave.
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
4 ##
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
5 ## Octave is free software; you can redistribute it and/or modify it
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
6 ## under the terms of the GNU General Public License as published by
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
7 ## the Free Software Foundation; either version 3 of the License, or (at
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
8 ## your option) any later version.
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
9 ##
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
10 ## Octave is distributed in the hope that it will be useful, but
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
13 ## General Public License for more details.
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
14 ##
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
15 ## You should have received a copy of the GNU General Public License
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
16 ## along with Octave; see the file COPYING. If not, see
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
17 ## <http://www.gnu.org/licenses/>.
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
18
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
19 ## -*- texinfo -*-
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
20 ## @deftypefn {Function File} {} scatter (@var{x}, @var{y}, @var{s}, @var{c})
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
21 ## @deftypefnx {Function File} {} scatter (@dots{}, 'filled')
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
22 ## @deftypefnx {Function File} {} scatter (@dots{}, @var{style})
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
23 ## @deftypefnx {Function File} {} scatter (@dots{}, @var{prop}, @var{val})
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
24 ## @deftypefnx {Function File} {} scatter (@var{h}, @dots{})
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
25 ## @deftypefnx {Function File} {@var{h} =} scatter (@dots{})
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
26 ##
9040
dbd0c77e575e Cleanup documentation file plot.texi
Rik <rdrider0-list@yahoo.com>
parents: 7245
diff changeset
27 ## Plot a scatter plot of the data. A marker is plotted at each point
dbd0c77e575e Cleanup documentation file plot.texi
Rik <rdrider0-list@yahoo.com>
parents: 7245
diff changeset
28 ## defined by the points in the vectors @var{x} and @var{y}. The size of
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
29 ## the markers used is determined by the @var{s}, which can be a scalar,
9040
dbd0c77e575e Cleanup documentation file plot.texi
Rik <rdrider0-list@yahoo.com>
parents: 7245
diff changeset
30 ## a vector of the same length of @var{x} and @var{y}. If @var{s} is not
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
31 ## given or is an empty matrix, then the default value of 8 points is used.
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
32 ##
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
33 ## The color of the markers is determined by @var{c}, which can be a string
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
34 ## defining a fixed color, a 3 element vector giving the red, green and blue
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
35 ## components of the color, a vector of the same length as @var{x} that gives
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
36 ## a scaled index into the current colormap, or a @var{n}-by-3 matrix defining
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
37 ## the colors of each of the markers individually.
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
38 ##
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
39 ## The marker to use can be changed with the @var{style} argument, that is a
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
40 ## string defining a marker in the same manner as the @code{plot} command.
9040
dbd0c77e575e Cleanup documentation file plot.texi
Rik <rdrider0-list@yahoo.com>
parents: 7245
diff changeset
41 ## If the argument 'filled' is given then the markers as filled. All
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
42 ## additional arguments are passed to the underlying patch command.
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
43 ##
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
44 ## The optional return value @var{h} provides a handle to the patch object
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
45 ##
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
46 ## @example
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
47 ## @group
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
48 ## x = randn (100, 1);
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
49 ## y = randn (100, 1);
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
50 ## scatter (x, y, [], sqrt(x.^2 + y.^2));
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
51 ## @end group
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
52 ## @end example
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
53 ##
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
54 ## @seealso{plot, patch, scatter3}
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
55 ## @end deftypefn
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
56
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
57 function retval = scatter (varargin)
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
58
7215
dd88d61d443f [project @ 2007-11-29 16:44:45 by jwe]
jwe
parents: 7208
diff changeset
59 [h, varargin, nargin] = __plt_get_axis_arg__ ("scatter", varargin{:});
dd88d61d443f [project @ 2007-11-29 16:44:45 by jwe]
jwe
parents: 7208
diff changeset
60
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
61 if (nargin < 2)
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
62 print_usage ();
7215
dd88d61d443f [project @ 2007-11-29 16:44:45 by jwe]
jwe
parents: 7208
diff changeset
63 else
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
64 oldh = gca ();
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
65 unwind_protect
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
66 axes (h);
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
67 newplot ();
7215
dd88d61d443f [project @ 2007-11-29 16:44:45 by jwe]
jwe
parents: 7208
diff changeset
68 tmp = __scatter__ (h, 2, "scatter", varargin{:});
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
69 unwind_protect_cleanup
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
70 axes (oldh);
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
71 end_unwind_protect
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
72 endif
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
73
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
74 if (nargout > 0)
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
75 retval = tmp;
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
76 endif
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
77
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
78 endfunction
7245
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7215
diff changeset
79
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7215
diff changeset
80 %!demo
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7215
diff changeset
81 %! x = randn (100, 1);
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7215
diff changeset
82 %! y = randn (100, 1);
10697
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
83 %! scatter (x, y, "r")
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
84
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
85 %!demo
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
86 %! x = randn (100, 1);
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
87 %! y = randn (100, 1);
7245
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7215
diff changeset
88 %! scatter (x, y, [], sqrt(x.^2 + y.^2));
10697
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
89
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
90 %!demo
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
91 %! x = rand (10, 1);
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
92 %! y = rand (10, 1);
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
93 %! s = 10 - 10 * log (x.^2+y.^2);
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
94 %! h = scatter (x, y, s, s, "s", "filled");
1215ab6f3491 Honor Matlab color settings for scatter().
Ben Abbott <bpabbott@mac.com>
parents: 9245
diff changeset
95