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<html><head> <meta HTTP-EQUIV="Content-Type" CONTENT="text/html;charset=ISO-8859-1"> <title>Contents.m</title><link rel="stylesheet" type="text/css" href="../stpr.css"></head><body><table border=0 width="100%" cellpadding=0 cellspacing=0><tr valign="baseline"><td valign="baseline" class="function"><b class="function">GENCIRCLEDATA</b><td valign="baseline" align="right" class="function"><a href="../data/index.html" target="mdsdir"><img border = 0 src="../up.gif"></a></table> <p><b>Generates data on circle corrupted by Gaussian noise.
</b></p> <hr><div class='code'><code><span class=help>
</span><br><span class=help> <span class=help_field>Synopsis:</span></span><br><span class=help> [X,gnd_X] = gencircledata(Center,R,num_data,dev)
</span><br><span class=help>
</span><br><span class=help> <span class=help_field>Description:</span></span><br><span class=help> The underlying curve is 2D circle given by Center and radius R.
</span><br><span class=help> This function randomly samples points on the circle and it adds
</span><br><span class=help> Gaussian noise with given standard deviation dev.
</span><br><span class=help>
</span><br><span class=help> <span class=help_field>Input:</span></span><br><span class=help> Center [2x1] Circle center.
</span><br><span class=help> R [1x1] Circle radius.
</span><br><span class=help> num_data [1x1] Number of samples.
</span><br><span class=help> dev [1x1] Standard deviation of added Gaussian noise (default 1).
</span><br><span class=help>
</span><br><span class=help> <span class=help_field>Output:</span></span><br><span class=help> X [2xnum_data] Generated samples.
</span><br><span class=help> gnd_X [2xnum_data] Ground truth - samples without noise.
</span><br><span class=help>
</span><br><span class=help> <span class=help_field>Example:</span></span><br><span class=help> [X,gnd_X] = gencircledata([1;1],5,500,1);
</span><br><span class=help> figure;
</span><br><span class=help> ppatterns(X); ppatterns(gnd_X,'r+');
</span><br><span class=help>
</span><br></code></div> <hr> <b>Source:</b> <a href= "../data/list/gencircledata.html">gencircledata.m</a> <p><b class="info_field">About: </b> Statistical Pattern Recognition Toolbox
<br> (C) 1999-2003, Written by Vojtech Franc and Vaclav Hlavac
<br> <a href="http://www.cvut.cz">Czech Technical University Prague</a>
<br> <a href="http://www.feld.cvut.cz">Faculty of Electrical Engineering</a>
<br> <a href="http://cmp.felk.cvut.cz">Center for Machine Perception</a>
<br> <p><b class="info_field">Modifications: </b>
<br> 4-may-2004, VF
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