annotate scripts/plot/semilogy.m @ 16580:adc150db1809

style fixes for uigetfile changes * dialog.cc, dialog.h, main-window.cc, octave-qt-link.cc, octave-qt-link.h, octave-link.cc, octave-link.h, uigetfile.m: Style fixes.
author John W. Eaton <jwe@octave.org>
date Sun, 28 Apr 2013 13:41:37 -0400
parents 5d3a684236b0
children ddac88d32d6a
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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 two-dimensional plot using a logarithmic scale for the @var{y}
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27 ## axis. See the documentation of @code{plot} for a description of the
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28 ## arguments that @code{semilogy} will accept.
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29 ##
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30 ## The optional return value @var{h} is a graphics handle to the created plot.
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31 ## @seealso{plot, semilogx, loglog}
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32 ## @end deftypefn
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33
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34 ## Author: jwe
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35
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36 function retval = semilogy (varargin)
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37
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38 [h, varargin, nargs] = __plt_get_axis_arg__ ("semilogy", varargin{:});
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39
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40 if (nargs < 1)
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41 print_usage ();
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42 endif
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43
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44 oldh = gca ();
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45 unwind_protect
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46 axes (h);
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47 newplot ();
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48
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49 set (h, "yscale", "log");
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50 if (any (strcmp (get (gca, "nextplot"), {"new", "replace"})))
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51 set (h, "yminortick", "on");
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52 endif
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53
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54 tmp = __plt__ ("semilogy", h, varargin{:});
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55
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56 if (nargout > 0)
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57 retval = tmp;
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58 endif
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59
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60 unwind_protect_cleanup
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61 axes (oldh);
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62 end_unwind_protect
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63
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64 endfunction
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66
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67 %!demo
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68 %! clf;
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69 %! x = 1:0.01:10;
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70 %! y = (x .* (1 + rand (size (x)))) .^ 2;
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71 %! semilogy (x, y);
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73 %!demo
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74 %! clf;
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75 %! x = logspace (-5, 1, 10);
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76 %! y = logspace (-5, 1, 10);
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77 %!
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78 %! subplot (2,1,1);
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79 %! semilogy (x, y);
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80 %! ylabel ('semilogy (x, y)');
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81 %!
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82 %! subplot (2,1,2);
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83 %! semilogy (x, -y);
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84 %! ylabel ('semilogy (x, -y)');
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85
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86 %!demo
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87 %! clf;
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88 %! x = logspace (-5, 1, 10);
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89 %! y = logspace (-5, 1, 10);
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90 %!
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91 %! subplot (2,1,1);
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92 %! semilogy (x, y);
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93 %! set (gca, 'ydir', 'reverse', 'activepositionproperty', 'outerposition');
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94 %! ylabel ({'semilogy (x, y)', 'ydir = reversed'});
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95 %!
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96 %! subplot (2,1,2);
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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 %!test
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102 %! hf = figure ("visible", "off");
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103 %! unwind_protect
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104 %! a = logspace (-5, 1, 10);
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105 %! b = logspace (-5, 1, 10);
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106 %! semilogy (a, b);
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107 %! assert (get (gca, "yscale"), "log");
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108 %! assert (get (gca, "xscale"), "linear");
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109 %! unwind_protect_cleanup
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110 %! close (hf);
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111 %! end_unwind_protect
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112
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113 %!test
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114 %! hf = figure ("visible", "off");
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115 %! unwind_protect
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116 %! a = logspace (-5, 1, 10);
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117 %! b =-logspace (-5, 1, 10);
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118 %! semilogy (a, b);
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119 %! axis tight;
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120 %! assert (all (get (gca, "ytick") < 0));
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121 %! unwind_protect_cleanup
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122 %! close (hf);
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123 %! end_unwind_protect
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124