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annotate scripts/plot/loglogerr.m @ 10595:46c8ecc4d565

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Add demos to loglogerr.m, semilogxerr.m, & semilogyerr.m
author Ben Abbott <bpabbott@mac.com>
date Fri, 30 Apr 2010 19:08:55 -0400
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John W. Eaton <jwe@octave.org>
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1 ## Copyright (C) 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2009
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John W. Eaton <jwe@octave.org>
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2 ## Teemu Ikonen
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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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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} loglogerr (@var{args})
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22 ## Produce two-dimensional plots on double logarithm axis with
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23 ## errorbars. Many different combinations of arguments are possible.
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24 ## The most used form is
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25 ##
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26 ## @example
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27 ## loglogerr (@var{x}, @var{y}, @var{ey}, @var{fmt})
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28 ## @end example
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29 ##
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30 ## @noindent
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31 ## which produces a double logarithm plot of @var{y} versus @var{x}
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32 ## with errors in the @var{y}-scale defined by @var{ey} and the plot
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33 ## format defined by @var{fmt}. See errorbar for available formats and
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34 ## additional information.
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35 ## @seealso{errorbar, semilogxerr, semilogyerr}
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36 ## @end deftypefn
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37
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38 ## Created: 20.2.2001
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39 ## Author: Teemu Ikonen <tpikonen@pcu.helsinki.fi>
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40 ## Keywords: errorbar, plotting
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41
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42 function retval = loglogerr (varargin)
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43
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44 [h, varargin] = __plt_get_axis_arg__ ("loglogerr", varargin{:});
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45
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46 oldh = gca ();
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47 unwind_protect
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48 axes (h);
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49 newplot ();
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50
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51 set (h, "xscale", "log", "yscale", "log");
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52
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53 tmp = __errcomm__ ("loglogerr", h, varargin{:});
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54
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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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61
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62 endfunction
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64 %!demo
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65 %! x = exp (log(0.01):0.2:log(10));
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66 %! y = wblpdf (x, 3, 2);
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67 %! eyu = 2*rand (size (y)) .* y;
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68 %! eyl = 0.5*rand (size (y)) .* y;
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69 %! loglogerr (x, y, eyl, eyu, "#~x-")
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70 %! xlim (x([1, end]))
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