Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/MLC|PARAMETERS">PARAMETERS</a><hr>
<H4>NULLCLAS</H4>
Specifies whether pixels can be assigned to the NULL (value 0)
class. This parameter is only used during a full maximum likelihood
classification (that is, when MAXL=&quot;FULL&quot;).
<P>
<PRE>
 EASI&gt;NULLCLAS=&quot;YES&quot;   | Allow NULL class
 EASI&gt;NULLCLAS=&quot;NO&quot;    | Classify every pixel to a class
 EASI&gt;NULLCLAS=        | Defaults to &quot;YES&quot;
</PRE>
If this option is &quot;YES&quot; then a pixel is assigned to a class only
if it is within the Gaussian threshold specified for the class. If
it is not within any threshold, it is assigned to the NULL (0)
class. If the option is &quot;NO&quot; then the thresholds are ignored and
every pixel will be assigned to the most probable class (i.e.,
nearest class based on Mahalanobis distance).
<P>
<hr>
Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/MLC|PARAMETERS">PARAMETERS</a><br>
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