br>
<span class=help>%&nbsp;&nbsp;quad_model&nbsp;=&nbsp;lin2quad(lin_model);</span><br>
<span class=help>%&nbsp;&nbsp;figure;&nbsp;ppatterns(orig_data);&nbsp;</span><br>
<span class=help>%&nbsp;&nbsp;pboundary(quad_model);</span><br>
<span class=help>%</span><br>
<span class=help>%&nbsp;See&nbsp;also&nbsp;</span><br>
<span class=help>%&nbsp;&nbsp;QUACLASS,&nbsp;QMAP</span><br>
<span class=help>%</span><br>
<hr>
<span class=help1>%&nbsp;<span class=help1_field>Modifications:</span></span><br>
<span class=he