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doc: Rewrite docstrings for most plot functions. Emphasize clarity, use common "voice", and increase density of seealso links. * doc/interpreter/plot.txi: Add @findex entries that were in xlim.m * scripts/miscellaneous/getappdata.m scripts/miscellaneous/setappdata.m, scripts/plot/allchild.m, scripts/plot/ancestor.m, scripts/plot/area.m, scripts/plot/axes.m, scripts/plot/axis.m, scripts/plot/bar.m, scripts/plot/barh.m, scripts/plot/box.m, scripts/plot/caxis.m, scripts/plot/cla.m, scripts/plot/clabel.m, scripts/plot/clf.m, scripts/plot/close.m, scripts/plot/closereq.m, scripts/plot/colorbar.m, scripts/plot/comet.m, scripts/plot/comet3.m, scripts/plot/compass.m, scripts/plot/contour.m, scripts/plot/contour3.m, scripts/plot/contourc.m, scripts/plot/contourf.m, scripts/plot/copyobj.m, scripts/plot/cylinder.m, scripts/plot/daspect.m, scripts/plot/diffuse.m, scripts/plot/ellipsoid.m, scripts/plot/errorbar.m, scripts/plot/ezcontour.m, scripts/plot/ezcontourf.m, scripts/plot/ezmesh.m, scripts/plot/ezmeshc.m, scripts/plot/ezplot.m, scripts/plot/ezplot3.m, scripts/plot/ezpolar.m, scripts/plot/ezsurf.m, scripts/plot/ezsurfc.m, scripts/plot/feather.m, scripts/plot/figure.m, scripts/plot/fill.m, scripts/plot/findall.m, scripts/plot/findobj.m, scripts/plot/fplot.m, scripts/plot/gca.m, scripts/plot/gcbf.m, scripts/plot/gcbo.m, scripts/plot/gcf.m, scripts/plot/gco.m, scripts/plot/ginput.m, scripts/plot/graphics_toolkit.m, scripts/plot/grid.m, scripts/plot/gtext.m, scripts/plot/guidata.m, scripts/plot/guihandles.m, scripts/plot/hdl2struct.m, scripts/plot/hggroup.m, scripts/plot/hidden.m, scripts/plot/hist.m, scripts/plot/hold.m, scripts/plot/ishghandle.m, scripts/plot/ishold.m, scripts/plot/isocolors.m, scripts/plot/isprop.m, scripts/plot/legend.m, scripts/plot/line.m, scripts/plot/linkprop.m, scripts/plot/loglog.m, scripts/plot/loglogerr.m, scripts/plot/mesh.m, scripts/plot/meshc.m, scripts/plot/meshgrid.m, scripts/plot/meshz.m, scripts/plot/newplot.m, scripts/plot/orient.m, scripts/plot/pareto.m, scripts/plot/patch.m, scripts/plot/pcolor.m, scripts/plot/peaks.m, scripts/plot/pie.m, scripts/plot/pie3.m, scripts/plot/plot.m, scripts/plot/plot3.m, scripts/plot/plotmatrix.m, scripts/plot/plotyy.m, scripts/plot/polar.m, scripts/plot/print.m, scripts/plot/quiver.m, scripts/plot/quiver3.m, scripts/plot/rectangle.m, scripts/plot/refresh.m, scripts/plot/refreshdata.m, scripts/plot/ribbon.m, scripts/plot/rose.m, scripts/plot/saveas.m, scripts/plot/scatter.m, scripts/plot/scatter3.m, scripts/plot/semilogx.m, scripts/plot/semilogxerr.m, scripts/plot/semilogy.m, scripts/plot/semilogyerr.m, scripts/plot/shading.m, scripts/plot/shg.m, scripts/plot/shrinkfaces.m, scripts/plot/slice.m, scripts/plot/specular.m, scripts/plot/sphere.m, scripts/plot/stairs.m, scripts/plot/stem.m, scripts/plot/stem3.m, scripts/plot/struct2hdl.m, scripts/plot/subplot.m, scripts/plot/surf.m, scripts/plot/surface.m, scripts/plot/surfc.m, scripts/plot/surfl.m, scripts/plot/tetramesh.m, scripts/plot/text.m, scripts/plot/title.m, scripts/plot/trimesh.m, scripts/plot/triplot.m, scripts/plot/trisurf.m, scripts/plot/view.m, scripts/plot/waitbar.m, scripts/plot/waitforbuttonpress.m, scripts/plot/waterfall.m, scripts/plot/whitebg.m, scripts/plot/xlabel.m, scripts/plot/xlim.m, scripts/plot/ylabel.m, scripts/plot/ylim.m, scripts/plot/zlabel.m, scripts/plot/zlim.m: Rewrite docstrings for most plot functions. Emphasize clarity, use common "voice", and increase density of seealso links.
author Rik <rik@octave.org>
date Wed, 31 Jul 2013 13:53:30 -0700
parents 33444116aa77
children 26589abbc78d
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72c96de7a403 maint: update copyright notices for 2012
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1 ## Copyright (C) 1993-2012 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} semilogy (@var{y})
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21 ## @deftypefnx {Function File} {} semilogy (@var{x}, @var{y})
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22 ## @deftypefnx {Function File} {} semilogy (@var{x}, @var{y}, @var{property}, @var{value}, @dots{})
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23 ## @deftypefnx {Function File} {} semilogy (@var{x}, @var{y}, @var{fmt})
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24 ## @deftypefnx {Function File} {} semilogy (@var{h}, @dots{})
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25 ## @deftypefnx {Function File} {@var{h} =} semilogy (@dots{})
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26 ## Produce a 2-D plot using a logarithmic scale for the y-axis.
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27 ##
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28 ## See the documentation of @code{plot} for a description of the
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29 ## arguments that @code{semilogy} will accept.
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30 ##
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31 ## If the first argument @var{hax} is an axes handle, then plot into this axis,
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32 ## rather than the current axes returned by @code{gca}.
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33 ##
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34 ## The optional return value @var{h} is a graphics handle to the created plot.
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35 ## @seealso{plot, semilogx, loglog}
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36 ## @end deftypefn
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38 ## Author: jwe
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39
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40 function h = semilogy (varargin)
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42 [hax, varargin, nargs] = __plt_get_axis_arg__ ("semilogy", varargin{:});
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43
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44 if (nargs < 1)
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45 print_usage ();
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46 endif
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47
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48 oldfig = ifelse (isempty (hax), [], get (0, "currentfigure"));
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49 unwind_protect
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50 hax = newplot (hax);
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52 set (hax, "yscale", "log");
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53 if (! ishold (hax))
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54 set (hax, "yminortick", "on");
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55 endif
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57 htmp = __plt__ ("semilogy", hax, varargin{:});
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58
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59 if (nargout > 0)
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60 h = htmp;
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61 endif
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63 unwind_protect_cleanup
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64 if (! isempty (oldfig))
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65 set (0, "currentfigure", oldfig);
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66 endif
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67 end_unwind_protect
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69 endfunction
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72 %!demo
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73 %! clf;
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74 %! x = 1:0.01:10;
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75 %! y = (x .* (1 + rand (size (x)))) .^ 2;
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76 %! semilogy (x, y);
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77
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78 %!demo
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79 %! clf;
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80 %! x = logspace (-5, 1, 10);
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81 %! y = logspace (-5, 1, 10);
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82 %!
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83 %! subplot (2,1,1);
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84 %! semilogy (x, y);
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85 %! ylabel ('semilogy (x, y)');
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86 %!
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87 %! subplot (2,1,2);
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88 %! semilogy (x, -y);
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89 %! ylabel ('semilogy (x, -y)');
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90
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91 %!demo
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92 %! clf;
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93 %! x = logspace (-5, 1, 10);
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94 %! y = logspace (-5, 1, 10);
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95 %!
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96 %! subplot (2,1,1);
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97 %! semilogy (x, y);
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98 %! set (gca, 'ydir', 'reverse', 'activepositionproperty', 'outerposition');
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99 %! ylabel ({'semilogy (x, y)', 'ydir = reversed'});
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100 %!
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101 %! subplot (2,1,2);
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102 %! semilogy (x, -y);
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103 %! set (gca, 'ydir', 'reverse', 'activepositionproperty', 'outerposition');
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104 %! ylabel ({'semilogy (x, -y)', 'ydir = reversed'});
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105
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106 %!test
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107 %! hf = figure ("visible", "off");
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108 %! unwind_protect
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109 %! a = logspace (-5, 1, 10);
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110 %! b = logspace (-5, 1, 10);
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Rik <octave@nomad.inbox5.com>
parents: 13783
diff changeset
111 %! semilogy (a, b);
13103
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
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112 %! assert (get (gca, "yscale"), "log");
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
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113 %! assert (get (gca, "xscale"), "linear");
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
114 %! unwind_protect_cleanup
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Rik <octave@nomad.inbox5.com>
parents: 13783
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115 %! close (hf);
13103
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Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
116 %! end_unwind_protect
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
117
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
118 %!test
13124
2ea1658ad049 Don't use explicit figure number for tests to avoid interference with any figures opened by user.
Kai Habel <kai.habel@gmx.de>
parents: 13104
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119 %! hf = figure ("visible", "off");
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 13124
diff changeset
120 %! unwind_protect
13103
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Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
121 %! a = logspace (-5, 1, 10);
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
122 %! b =-logspace (-5, 1, 10);
14001
5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761)
Rik <octave@nomad.inbox5.com>
parents: 13783
diff changeset
123 %! semilogy (a, b);
5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761)
Rik <octave@nomad.inbox5.com>
parents: 13783
diff changeset
124 %! axis tight;
13103
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
125 %! assert (all (get (gca, "ytick") < 0));
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
126 %! unwind_protect_cleanup
14001
5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761)
Rik <octave@nomad.inbox5.com>
parents: 13783
diff changeset
127 %! close (hf);
13103
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
128 %! end_unwind_protect
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
129