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annotate scripts/plot/loglog.m @ 10730:390d93e20531

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Plot commands now print usage information without errors when called with no arguments (bug #29986).
author Rik <octave@nomad.inbox5.com>
date Thu, 24 Jun 2010 12:22:27 -0700
parents 153e6226a669
children fd0a3ac60b0e
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1 ## Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2004,
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2 ## 2005, 2006, 2007 John W. Eaton
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3 ##
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4 ## This file is part of Octave.
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5 ##
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6 ## Octave is free software; you can redistribute it and/or modify it
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7 ## under the terms of the GNU General Public License as published by
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8 ## the Free Software Foundation; either version 3 of the License, or (at
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9 ## your option) any later version.
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10 ##
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11 ## Octave is distributed in the hope that it will be useful, but
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 ## General Public License for more details.
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15 ##
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16 ## You should have received a copy of the GNU General Public License
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17 ## along with Octave; see the file COPYING. If not, see
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18 ## <http://www.gnu.org/licenses/>.
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} loglog (@var{y})
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22 ## @deftypefnx {Function File} {} loglog (@var{x}, @var{y})
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23 ## @deftypefnx {Function File} {} loglog (@var{x}, @var{y}, @var{property}, @var{value}, @dots{})
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24 ## @deftypefnx {Function File} {} loglog (@var{x}, @var{y}, @var{fmt})
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25 ## @deftypefnx {Function File} {} loglog (@var{h}, @dots{})
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26 ## @deftypefnx {Function File} {@var{h} =} loglog (@dots{})
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27 ## Produce a two-dimensional plot using log scales for both axes. See
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28 ## the documentation of @code{plot} for a description of the arguments
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29 ## that @code{loglog} will accept.
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30 ## @seealso{plot, semilogx, semilogy}
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31 ## @end deftypefn
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33 ## Author: jwe
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34
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35 function retval = loglog (varargin)
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37 [h, varargin, nargs] = __plt_get_axis_arg__ ("loglog", varargin{:});
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38
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39 if (nargs < 1)
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40 print_usage();
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41 endif
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42
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43 oldh = gca ();
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44 unwind_protect
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45 axes (h);
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46 newplot ();
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48 set (h, "xscale", "log", "yscale", "log");
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49 if (any( strcmp (get (gca, "nextplot"), {"new", "replace"})))
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50 set (h, "xminortick", "on", "yminortick", "on");
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51 endif
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53 tmp = __plt__ ("loglog", h, varargin{:});
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55 if (nargout > 0)
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56 retval = tmp;
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57 endif
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58 unwind_protect_cleanup
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59 axes (oldh);
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60 end_unwind_protect
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62 endfunction
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