Mercurial > hg > octave-lyh
annotate scripts/plot/bar.m @ 11366:ad8966096e27
bar.m: Improve the docstring.
author | Rik <octave@nomad.inbox5.com> |
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date | Tue, 14 Dec 2010 18:40:38 -0800 |
parents | a4f482e66b65 |
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7017 | 1 ## Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2004, |
9245 | 2 ## 2005, 2006, 2007, 2008, 2009 John W. Eaton |
2313 | 3 ## |
4 ## This file is part of Octave. | |
5 ## | |
6 ## Octave is free software; you can redistribute it and/or modify it | |
7 ## under the terms of the GNU General Public License as published by | |
7016 | 8 ## the Free Software Foundation; either version 3 of the License, or (at |
9 ## your option) any later version. | |
2313 | 10 ## |
11 ## Octave is distributed in the hope that it will be useful, but | |
12 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 ## General Public License for more details. | |
15 ## | |
16 ## You should have received a copy of the GNU General Public License | |
7016 | 17 ## along with Octave; see the file COPYING. If not, see |
18 ## <http://www.gnu.org/licenses/>. | |
245 | 19 |
3368 | 20 ## -*- texinfo -*- |
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21 ## @deftypefn {Function File} {} bar (@var{x}, @var{y}) |
7106 | 22 ## @deftypefnx {Function File} {} bar (@var{y}) |
23 ## @deftypefnx {Function File} {} bar (@var{x}, @var{y}, @var{w}) | |
24 ## @deftypefnx {Function File} {} bar (@var{x}, @var{y}, @var{w}, @var{style}) | |
25 ## @deftypefnx {Function File} {@var{h} =} bar (@dots{}, @var{prop}, @var{val}) | |
7189 | 26 ## @deftypefnx {Function File} {} bar (@var{h}, @dots{}) |
7096 | 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 |
2311 | 30 ## and the x coordinates are taken to be the indices of the elements. |
3426 | 31 ## |
7096 | 32 ## The default width of 0.8 for the bars can be changed using @var{w}. |
33 ## | |
6540 | 34 ## If @var{y} is a matrix, then each column of @var{y} is taken to be a |
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35 ## separate bar graph plotted on the same graph. By default the columns |
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36 ## are plotted side-by-side. This behavior can be changed by the @var{style} |
7086 | 37 ## argument, which can take the values @code{"grouped"} (the default), |
38 ## or @code{"stacked"}. | |
6540 | 39 ## |
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40 ## The optional return value @var{h} provides a handle to the "bar series" |
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41 ## object with one handle per column of the variable @var{y}. This |
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42 ## series allows common elements of the group of bar series objects to |
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43 ## be changed in a single bar series and the same properties are changed |
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44 ## in the other "bar series". For example, |
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45 ## |
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46 ## @example |
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47 ## @group |
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48 ## h = bar (rand (5, 10)); |
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49 ## set (h(1), "basevalue", 0.5); |
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50 ## @end group |
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51 ## @end example |
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52 ## |
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53 ## @noindent |
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54 ## changes the position on the base of all of the bar series. |
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55 ## |
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56 ## The optional input handle @var{h} allows an axis handle to be passed. |
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57 ## |
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58 ## The bargraph's appearance may be modified by specifying property/value |
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59 ## pairs. The following example modifies the face and edge colors. |
3426 | 60 ## |
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61 ## @example |
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62 ## bar (randn (1, 100), "facecolor", "r", "edgecolor", "b") |
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63 ## @end example |
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64 ## |
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65 ## @noindent |
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66 ## The color of the bars is taken from the figure's colormap, such that |
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67 ## |
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68 ## @example |
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69 ## @group |
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70 ## bar (rand(10,3)) |
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71 ## colormap (summer ()) |
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72 ## @end group |
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73 ## @end example |
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74 ## |
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75 ## @noindent |
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76 ## will change the colors used for the bars. The color of bars can also be set |
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77 ## manually using the "facecolor" property as shown below. |
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78 ## |
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79 ## @example |
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80 ## @group |
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81 ## h = bar (rand(10,3)) |
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82 ## set (h(1), "facecolor", "r") |
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83 ## set (h(2), "facecolor", "g") |
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84 ## set (h(3), "facecolor", "b") |
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85 ## @end group |
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86 ## @end example |
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87 ## |
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88 ## @seealso{barh, plot} |
3368 | 89 ## @end deftypefn |
4 | 90 |
2314 | 91 ## Author: jwe |
92 | |
6540 | 93 function varargout = bar (varargin) |
94 varargout = cell (nargout, 1); | |
95 [varargout{:}] = __bar__ (true, "bar", varargin{:}); | |
4 | 96 endfunction |