Mercurial > hg > octave-lyh
annotate scripts/plot/bar.m @ 17475:fd01c78caa0b
Added tag ss-3-7-7 for changeset cc13924a4266
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 23 Sep 2013 13:31:11 -0400 |
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1 ## Copyright (C) 1993-2012 John W. Eaton |
2313 | 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 | |
7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
8 ## your option) any later version. | |
2313 | 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 | |
7016 | 16 ## along with Octave; see the file COPYING. If not, see |
17 ## <http://www.gnu.org/licenses/>. | |
245 | 18 |
3368 | 19 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {} bar (@var{y}) |
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21 ## @deftypefnx {Function File} {} bar (@var{x}, @var{y}) |
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22 ## @deftypefnx {Function File} {} bar (@dots{}, @var{w}) |
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23 ## @deftypefnx {Function File} {} bar (@dots{}, @var{style}) |
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24 ## @deftypefnx {Function File} {} bar (@dots{}, @var{prop}, @var{val}, @dots{}) |
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25 ## @deftypefnx {Function File} {} bar (@var{hax}, @dots{}) |
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26 ## @deftypefnx {Function File} {@var{h} =} bar (@dots{}, @var{prop}, @var{val}, @dots{}) |
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27 ## Produce a bar graph from two vectors of X-Y data. |
3426 | 28 ## |
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29 ## If only one argument is given, @var{y}, it is taken as a vector of Y values |
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30 ## and the X coordinates are the range @code{1:numel (@var{y})}. |
3426 | 31 ## |
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32 ## The optional input @var{w} controls the width of the bars. A value of |
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33 ## 1.0 will cause each bar to exactly touch any adjacent bars. |
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34 ## The default width is 0.8. |
7096 | 35 ## |
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37 ## separate bar graph plotted on the same graph. By default the columns |
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38 ## are plotted side-by-side. This behavior can be changed by the @var{style} |
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39 ## argument, which can take the values @qcode{"grouped"} (the default), |
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40 ## or @qcode{"stacked"}. |
6540 | 41 ## |
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42 ## Optional property/value pairs are passed directly to the underlying patch |
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43 ## objects. |
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44 ## |
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45 ## If the first argument @var{hax} is an axes handle, then plot into this axis, |
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46 ## rather than the current axes returned by @code{gca}. |
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47 ## |
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48 ## The optional return value @var{h} is a vector of handles to the created |
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49 ## "bar series" hggroups with one handle per column of the variable @var{y}. |
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50 ## This series makes it possible to change a common element in one bar series |
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51 ## object and have the change reflected in the other "bar series". |
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52 ## For example, |
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53 ## |
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54 ## @example |
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55 ## @group |
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56 ## h = bar (rand (5, 10)); |
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57 ## set (h(1), "basevalue", 0.5); |
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58 ## @end group |
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59 ## @end example |
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60 ## |
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61 ## @noindent |
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62 ## changes the position on the base of all of the bar series. |
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63 ## |
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64 ## The following example modifies the face and edge colors using |
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65 ## property/value pairs. |
3426 | 66 ## |
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67 ## @example |
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68 ## bar (randn (1, 100), "facecolor", "r", "edgecolor", "b"); |
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69 ## @end example |
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70 ## |
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71 ## @noindent |
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72 ## The color of the bars is taken from the figure's colormap, such that |
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73 ## |
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74 ## @example |
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75 ## @group |
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76 ## bar (rand (10, 3)); |
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77 ## colormap (summer (64)); |
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78 ## @end group |
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79 ## @end example |
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80 ## |
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81 ## @noindent |
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82 ## will change the colors used for the bars. The color of bars can also be set |
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83 ## manually using the @qcode{"facecolor"} property as shown below. |
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84 ## |
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85 ## @example |
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86 ## @group |
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87 ## h = bar (rand (10, 3)); |
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88 ## set (h(1), "facecolor", "r") |
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89 ## set (h(2), "facecolor", "g") |
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90 ## set (h(3), "facecolor", "b") |
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91 ## @end group |
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92 ## @end example |
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93 ## |
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94 ## @seealso{barh, hist, pie, plot, patch} |
3368 | 95 ## @end deftypefn |
4 | 96 |
2314 | 97 ## Author: jwe |
98 | |
6540 | 99 function varargout = bar (varargin) |
100 varargout = cell (nargout, 1); | |
101 [varargout{:}] = __bar__ (true, "bar", varargin{:}); | |
4 | 102 endfunction |
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103 |
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104 |
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105 %!demo |
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106 %! clf; |
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107 %! y = rand (11, 1); |
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108 %! h = bar (y); |
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109 %! set (h, 'ydata', sort (rand (11, 1))); |
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110 %! title ('bar() graph') |
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111 |
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112 %!demo |
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113 %! clf; |
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114 %! h = bar (rand (5, 3)); |
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115 %! set (h(1), 'facecolor', 'r') |
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116 %! set (h(2), 'facecolor', 'g') |
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117 %! set (h(3), 'facecolor', 'b') |
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118 %! title ('bar() graph w/multiple bars') |
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119 |