annotate scripts/plot/semilogx.m @ 17301:68bcac3c043a

Correct inversion accidentally introduced in cset 87ba70043bfc. * scripts/plot/area.m, scripts/plot/axis.m, scripts/plot/caxis.m, scripts/plot/comet.m, scripts/plot/comet3.m, scripts/plot/compass.m, scripts/plot/contour.m, scripts/plot/contour3.m, scripts/plot/contourf.m, scripts/plot/cylinder.m, scripts/plot/ellipsoid.m, scripts/plot/errorbar.m, scripts/plot/feather.m, scripts/plot/fill.m, scripts/plot/loglog.m, scripts/plot/loglogerr.m, scripts/plot/mesh.m, scripts/plot/meshc.m, scripts/plot/meshz.m, scripts/plot/pcolor.m, scripts/plot/pie.m, scripts/plot/pie3.m, scripts/plot/plot.m, scripts/plot/plot3.m, scripts/plot/polar.m, scripts/plot/private/__bar__.m, scripts/plot/private/__ezplot__.m, scripts/plot/private/__stem__.m, scripts/plot/quiver.m, scripts/plot/quiver3.m, scripts/plot/rectangle.m, scripts/plot/ribbon.m, scripts/plot/rose.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/slice.m, scripts/plot/sphere.m, scripts/plot/stairs.m, scripts/plot/surf.m, scripts/plot/surfc.m, scripts/plot/surfl.m, scripts/plot/surfnorm.m, scripts/time/datetick.m: check for (! isempty (hax)) before saving current figure.
author Rik <rik@octave.org>
date Tue, 20 Aug 2013 22:23:43 -0700
parents 87ba70043bfc
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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} {} semilogx (@var{y})
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21 ## @deftypefnx {Function File} {} semilogx (@var{x}, @var{y})
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22 ## @deftypefnx {Function File} {} semilogx (@var{x}, @var{y}, @var{property}, @var{value}, @dots{})
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23 ## @deftypefnx {Function File} {} semilogx (@var{x}, @var{y}, @var{fmt})
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24 ## @deftypefnx {Function File} {} semilogx (@var{hax}, @dots{})
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25 ## @deftypefnx {Function File} {@var{h} =} semilogx (@dots{})
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26 ## Produce a 2-D plot using a logarithmic scale for the x-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{semilogx} 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, semilogy, loglog}
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36 ## @end deftypefn
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37
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38 ## Author: jwe
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39
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40 function h = semilogx (varargin)
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42 [hax, varargin, nargs] = __plt_get_axis_arg__ ("semilogx", 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 = [];
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49 if (! isempty (hax))
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50 oldfig = get (0, "currentfigure");
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51 endif
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52 unwind_protect
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53 hax = newplot (hax);
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54
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55 set (hax, "xscale", "log");
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56 if (! ishold (hax))
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57 set (hax, "xminortick", "on");
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58 endif
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60 htmp = __plt__ ("semilogx", hax, varargin{:});
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62 unwind_protect_cleanup
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63 if (! isempty (oldfig))
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64 set (0, "currentfigure", oldfig);
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65 endif
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66 end_unwind_protect
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68 if (nargout > 0)
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69 h = htmp;
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70 endif
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71
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72 endfunction
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75 %!demo
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76 %! clf;
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77 %! x = 1:0.01:10;
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78 %! y = (x .* (1 + rand (size (x)))) .^ 2;
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79 %! semilogx (y, x);
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80 %! title ({'semilogx() plot', 'X-axis is logarithmic'});
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81
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82 %!demo
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83 %! clf;
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84 %! x = logspace (-5, 1, 10);
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85 %! y = logspace (-5, 1, 10);
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86 %!
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87 %! subplot (1,2,1);
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88 %! semilogx (x, y);
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89 %! xlabel ('semilogx (x, y)');
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90 %!
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91 %! subplot (1,2,2);
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92 %! semilogx (-x, y);
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93 %! xlabel ('semilogx (-x, y)');
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94
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95 %!demo
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96 %! clf;
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97 %! x = logspace (-5, 1, 10);
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98 %! y = logspace (-5, 1, 10);
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99 %!
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100 %! subplot (1,2,1);
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101 %! semilogx (x, y);
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102 %! set (gca, 'xdir', 'reverse', 'activepositionproperty', 'outerposition');
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103 %! xlabel ({'semilogx (x, y)', 'xdir = reversed'});
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104 %!
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105 %! subplot (1,2,2);
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106 %! semilogx (-x, y);
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107 %! set (gca, 'xdir', 'reverse', 'activepositionproperty', 'outerposition');
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108 %! xlabel ({'semilogx (-x, y)', 'xdir = reversed'});
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109
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110 %!test
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111 %! hf = figure ("visible", "off");
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112 %! unwind_protect
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113 %! a = logspace (-5, 1, 10);
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114 %! b = logspace (-5, 1, 10);
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115 %! semilogx (a, b);
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116 %! assert (get (gca, "xscale"), "log");
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117 %! assert (get (gca, "yscale"), "linear");
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118 %! unwind_protect_cleanup
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119 %! close (hf);
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120 %! end_unwind_protect
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Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
122 %!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
diff changeset
123 %! 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
124 %! unwind_protect
14316
0216b5d6c80c semilogx.m: Correct incorrectly coded %!test.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
125 %! a =-logspace (-5, 1, 10);
0216b5d6c80c semilogx.m: Correct incorrectly coded %!test.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
126 %! 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
127 %! semilogx (a, b);
5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761)
Rik <octave@nomad.inbox5.com>
parents: 13783
diff changeset
128 %! axis tight;
14316
0216b5d6c80c semilogx.m: Correct incorrectly coded %!test.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
129 %! assert (all (get (gca, "xtick") < 0));
13103
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
130 %! 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
131 %! close (hf);
13103
2e2738837a24 Add tests and demos for log-scale plotting functions
Carlo de Falco <kingcrimson@tiscali.it>
parents: 13090
diff changeset
132 %! end_unwind_protect
14001
5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761)
Rik <octave@nomad.inbox5.com>
parents: 13783
diff changeset
133