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doc: Correct accidental capitalization @var{Z} in mesh/surf docstrings. * scripts/plot/mesh.m, scripts/plot/meshc.m, scripts/plot/meshz.m, scripts/plot/surf.m, scripts/plot/surfc.m, scripts/plot/waterfall.m: Correct accidental capitalization @var{Z} in mesh/surf docstrings.
author Rik <rik@octave.org>
date Thu, 19 Sep 2013 15:22:26 -0700
parents e04847bbcfdf
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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72c96de7a403 maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
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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} {} plot (@var{y})
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21 ## @deftypefnx {Function File} {} plot (@var{x}, @var{y})
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22 ## @deftypefnx {Function File} {} plot (@var{x}, @var{y}, @var{fmt})
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23 ## @deftypefnx {Function File} {} plot (@dots{}, @var{property}, @var{value}, @dots{})
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24 ## @deftypefnx {Function File} {} plot (@var{x1}, @var{y1}, @dots{}, @var{xn}, @var{yn})
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25 ## @deftypefnx {Function File} {} plot (@var{hax}, @dots{})
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26 ## @deftypefnx {Function File} {@var{h} =} plot (@dots{})
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27 ## Produce 2-D plots.
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28 ##
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29 ## Many different combinations of arguments are possible. The simplest
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30 ## form is
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31 ##
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32 ## @example
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33 ## plot (@var{y})
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34 ## @end example
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35 ##
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36 ## @noindent
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37 ## where the argument is taken as the set of @var{y} coordinates and the
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38 ## @var{x} coordinates are taken to be the range @code{1:numel (@var{y})}.
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39 ##
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40 ## If more than one argument is given, they are interpreted as
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41 ##
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42 ## @example
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43 ## plot (@var{y}, @var{property}, @var{value}, @dots{})
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44 ## @end example
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45 ##
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46 ## @noindent
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47 ## or
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48 ##
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49 ## @example
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50 ## plot (@var{x}, @var{y}, @var{property}, @var{value}, @dots{})
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51 ## @end example
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52 ##
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53 ## @noindent
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54 ## or
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55 ##
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56 ## @example
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57 ## plot (@var{x}, @var{y}, @var{fmt}, @dots{})
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58 ## @end example
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59 ##
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60 ## @noindent
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61 ## and so on. Any number of argument sets may appear. The @var{x} and
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62 ## @var{y} values are interpreted as follows:
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63 ##
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64 ## @itemize @bullet
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65 ## @item
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66 ## If a single data argument is supplied, it is taken as the set of @var{y}
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67 ## coordinates and the @var{x} coordinates are taken to be the indices of
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68 ## the elements, starting with 1.
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69 ##
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70 ## @item
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71 ## If @var{x} and @var{y} are scalars, a single point is plotted.
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72 ##
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73 ## @item
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74 ## @code{squeeze()} is applied to arguments with more than two dimensions,
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75 ## but no more than two singleton dimensions.
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76 ##
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77 ## @item
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78 ## If both arguments are vectors, the elements of @var{y} are plotted versus
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79 ## the elements of @var{x}.
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80 ##
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81 ## @item
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82 ## If @var{x} is a vector and @var{y} is a matrix, then
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83 ## the columns (or rows) of @var{y} are plotted versus @var{x}.
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84 ## (using whichever combination matches, with columns tried first.)
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85 ##
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86 ## @item
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87 ## If the @var{x} is a matrix and @var{y} is a vector,
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88 ## @var{y} is plotted versus the columns (or rows) of @var{x}.
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89 ## (using whichever combination matches, with columns tried first.)
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90 ##
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91 ## @item
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92 ## If both arguments are matrices, the columns of @var{y} are plotted
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93 ## versus the columns of @var{x}. In this case, both matrices must have
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94 ## the same number of rows and columns and no attempt is made to transpose
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95 ## the arguments to make the number of rows match.
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96 ## @end itemize
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97 ##
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98 ## Multiple property-value pairs may be specified, but they must appear
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99 ## in pairs. These arguments are applied to the line objects drawn by
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100 ## @code{plot}. Useful properties to modify are @qcode{"linestyle"},
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101 ## @qcode{"linewidth"}, @qcode{"color"}, @qcode{"marker"},
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102 ## @qcode{"markersize"}, @qcode{"markeredgecolor"}, @qcode{"markerfacecolor"}.
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103 ##
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104 ## The @var{fmt} format argument can also be used to control the plot style.
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105 ## The format is composed of three parts: linestyle, markerstyle, color.
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106 ## When a markerstyle is specified, but no linestyle, only the markers are
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107 ## plotted. Similarly, if a linestyle is specified, but no markerstyle, then
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108 ## only lines are drawn. If both are specified then lines and markers will
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109 ## be plotted. If no @var{fmt} and no @var{property}/@var{value} pairs are
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110 ## given, then the default plot style is solid lines with no markers and the
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111 ## color determined by the @qcode{"colororder"} property of the current axes.
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112 ##
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113 ## Format arguments:
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114 ##
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115 ## @table @asis
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116 ## @item linestyle
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117 ##
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118 ## @multitable @columnfractions 0.06 0.94
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119 ## @item @samp{-} @tab Use solid lines (default).
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120 ## @item @samp{--} @tab Use dashed lines.
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121 ## @item @samp{:} @tab Use dotted lines.
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122 ## @item @samp{-.} @tab Use dash-dotted lines.
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123 ## @end multitable
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124 ##
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125 ## @item markerstyle
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126 ##
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127 ## @multitable @columnfractions 0.06 0.94
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128 ## @item @samp{+} @tab crosshair
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129 ## @item @samp{o} @tab circle
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130 ## @item @samp{*} @tab star
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131 ## @item @samp{.} @tab point
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132 ## @item @samp{x} @tab cross
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133 ## @item @samp{s} @tab square
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134 ## @item @samp{d} @tab diamond
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135 ## @item @samp{^} @tab upward-facing triangle
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136 ## @item @samp{v} @tab downward-facing triangle
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137 ## @item @samp{>} @tab right-facing triangle
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138 ## @item @samp{<} @tab left-facing triangle
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139 ## @item @samp{p} @tab pentagram
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140 ## @item @samp{h} @tab hexagram
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141 ## @end multitable
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142 ##
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143 ## @item color
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144 ##
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145 ## @multitable @columnfractions 0.06 0.94
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146 ## @item @samp{k} @tab blacK
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147 ## @item @samp{r} @tab Red
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148 ## @item @samp{g} @tab Green
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149 ## @item @samp{b} @tab Blue
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150 ## @item @samp{m} @tab Magenta
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151 ## @item @samp{c} @tab Cyan
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152 ## @item @samp{w} @tab White
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153 ## @end multitable
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154 ##
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155 ## @item @qcode{";key;"}
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156 ## Here @qcode{"key"} is the label to use for the plot legend.
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157 ## @end table
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158 ##
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159 ## The @var{fmt} argument may also be used to assign legend keys.
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160 ## To do so, include the desired label between semicolons after the
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161 ## formatting sequence described above, e.g., @qcode{"+b;Key Title;"}.
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162 ## Note that the last semicolon is required and Octave will generate
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163 ## an error if it is left out.
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164 ##
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165 ## Here are some plot examples:
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166 ##
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167 ## @example
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168 ## plot (x, y, "or", x, y2, x, y3, "m", x, y4, "+")
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169 ## @end example
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170 ##
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171 ## This command will plot @code{y} with red circles, @code{y2} with solid
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172 ## lines, @code{y3} with solid magenta lines, and @code{y4} with points
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173 ## displayed as @samp{+}.
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174 ##
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175 ## @example
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176 ## plot (b, "*", "markersize", 10)
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177 ## @end example
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178 ##
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179 ## This command will plot the data in the variable @code{b},
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180 ## with points displayed as @samp{*} and a marker size of 10.
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181 ##
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182 ## @example
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183 ## @group
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184 ## t = 0:0.1:6.3;
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185 ## plot (t, cos(t), "-;cos(t);", t, sin(t), "-b;sin(t);");
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186 ## @end group
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187 ## @end example
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188 ##
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189 ## This will plot the cosine and sine functions and label them accordingly
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190 ## in the legend.
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191 ##
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192 ## If the first argument @var{hax} is an axes handle, then plot into this axis,
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193 ## rather than the current axes returned by @code{gca}.
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194 ##
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195 ## The optional return value @var{h} is a vector of graphics handles to
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196 ## the created line objects.
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197 ##
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198 ## To save a plot, in one of several image formats such as PostScript
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199 ## or PNG, use the @code{print} command.
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200 ##
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201 ## @seealso{axis, box, grid, hold, legend, title, xlabel, ylabel, xlim, ylim, ezplot, errorbar, fplot, line, plot3, polar, loglog, semilogx, semilogy, subplot}
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202 ## @end deftypefn
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203
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204 ## Author: jwe
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205
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206 function h = plot (varargin)
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207
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208 [hax, varargin, nargs] = __plt_get_axis_arg__ ("plot", varargin{:});
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209
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210 if (nargs < 1)
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211 print_usage ();
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212 endif
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213
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214 oldfig = [];
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215 if (! isempty (hax))
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216 oldfig = get (0, "currentfigure");
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217 endif
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218 unwind_protect
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219 hax = newplot (hax);
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220 htmp = __plt__ ("plot", hax, varargin{:});
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221 unwind_protect_cleanup
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222 if (! isempty (oldfig))
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223 set (0, "currentfigure", oldfig);
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224 endif
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225 end_unwind_protect
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226
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227 if (nargout > 0)
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228 h = htmp;
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229 endif
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230
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231 endfunction
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232
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233
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234 %!demo
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235 %! x = 1:5; y = 1:5;
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236 %! plot (x,y,'g');
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237 %! title ('plot() of green line at 45 degrees');
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238
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239 %!demo
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240 %! x = 1:5; y = 1:5;
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241 %! plot (x,y,'g*');
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242 %! title ('plot() of green stars along a line at 45 degrees');
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243
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244 %!demo
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245 %! x1 = 1:5; y1 = 1:5;
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246 %! x2 = 5:9; y2 = 5:-1:1;
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247 %! plot (x1,y1,'bo-', x2,y2,'rs-');
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248 %! axis ('tight');
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249 %! title ({'plot() of blue circles ascending and red squares descending';
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250 %! 'connecting lines drawn'});
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251
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252 %!demo
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253 %! x = 0:10;
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254 %! plot (x, rand (numel (x), 3))
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255 %! axis ([0 10 0 1])
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256 %! title ({'Three random variables', 'x[1x11], y[11x3]'})
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257
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258 %!demo
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259 %! x = 0:10;
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260 %! plot (x, rand (3, numel (x)))
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261 %! axis ([0 10 0 1])
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262 %! title ({'Three random variables', 'x[1x11], y[3x11]'})
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263
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264 %!demo
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265 %! x = 0:10;
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266 %! plot (repmat (x, 2, 1), rand (2, numel (x)), '-s')
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267 %! axis ([0 10 0 1])
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268 %! title ({'Vertical lines with random height and lenths', ...
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269 %! 'x[2x11], y[2,11]'})
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270
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271 %!demo
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272 %! x = 0:10;
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273 %! plot (repmat (x(:), 1, 2), rand (numel (x), 2))
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274 %! axis ([0 10 0 1])
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275 %! title ({'Two random variables', 'x[11x2], y[11x2]'})
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276
e04847bbcfdf Squeeze Nd > 2 plot vectors.
Ben Abbott <bpabbott@mac.com>
parents: 17309
diff changeset
277 %!demo
e04847bbcfdf Squeeze Nd > 2 plot vectors.
Ben Abbott <bpabbott@mac.com>
parents: 17309
diff changeset
278 %! x = 0:10;
e04847bbcfdf Squeeze Nd > 2 plot vectors.
Ben Abbott <bpabbott@mac.com>
parents: 17309
diff changeset
279 %! shape = [1, 1, numel(x), 2];
e04847bbcfdf Squeeze Nd > 2 plot vectors.
Ben Abbott <bpabbott@mac.com>
parents: 17309
diff changeset
280 %! x = reshape (repmat (x(:), 1, 2), shape);
e04847bbcfdf Squeeze Nd > 2 plot vectors.
Ben Abbott <bpabbott@mac.com>
parents: 17309
diff changeset
281 %! y = rand (shape);
e04847bbcfdf Squeeze Nd > 2 plot vectors.
Ben Abbott <bpabbott@mac.com>
parents: 17309
diff changeset
282 %! plot (x, y)
e04847bbcfdf Squeeze Nd > 2 plot vectors.
Ben Abbott <bpabbott@mac.com>
parents: 17309
diff changeset
283 %! axis ([0 10 0 1])
e04847bbcfdf Squeeze Nd > 2 plot vectors.
Ben Abbott <bpabbott@mac.com>
parents: 17309
diff changeset
284 %! title ({'Two random variables', 'squeezed from 4-d arrays'})
e04847bbcfdf Squeeze Nd > 2 plot vectors.
Ben Abbott <bpabbott@mac.com>
parents: 17309
diff changeset
285