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annotate scripts/plot/stem3.m @ 12812:4c93cc41da15 stable

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codesprint: add demo for surf.m and surfc.m
author Kai Habel <kai.habel@gmx.de>
date Sat, 16 Jul 2011 20:56:20 +0200
parents c792872f8942
children 22c50cbad2ce
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fd0a3ac60b0e update copyright notices
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1 ## Copyright (C) 2007-2011 David Bateman
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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} {@var{h} =} stem3 (@var{x}, @var{y}, @var{z}, @var{linespec})
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21 ## Plot a three-dimensional stem graph and return the handles of the line
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22 ## and marker objects used to draw the stems as "stem series" object.
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23 ## The default color is @code{"r"} (red). The default line style is
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24 ## @code{"-"} and the default marker is @code{"o"}.
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25 ##
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26 ## For example,
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27 ##
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28 ## @example
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29 ## @group
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30 ## theta = 0:0.2:6;
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31 ## stem3 (cos (theta), sin (theta), theta)
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32 ## @end group
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33 ## @end example
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34 ##
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35 ## @noindent
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36 ## plots 31 stems with heights from 0 to 6 lying on a circle. Color
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37 ## definitions with RGB-triples are not valid!
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38 ## @seealso{bar, barh, stem, plot}
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39 ## @end deftypefn
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40
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41 function h = stem3 (varargin)
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42
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43 if (nargin < 1 || nargin > 4)
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44 print_usage ();
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45 endif
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46
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47 tmp = __stem__ (true, varargin{:});
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48
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49 if (nargout > 0)
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50 h = tmp;
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51 endif
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52
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53 endfunction
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54
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55 %!demo
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56 %! theta = 0:0.2:6;
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57 %! stem3 (cos (theta), sin (theta), theta)