Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/CLWORKS">CLWORKS</a><hr>
<H3>Signature Statistics </H3>
The ``Signature Statistics'' panel is launched from the main Classify menu.
It contains all the available information about the signature 
and class information for a single class.  <p>
The top portion of the panel includes a table indicating the class 
for which the information is being displayed. You may view the information
of other classes by selecting another class in the table. Normally
this selection is synchronized with other tables displaying the same class 
list. If multiple ``Signature Statistics'' panels are visible then only
one will be synchronized and the rest will be independent.  This allows 
you to view the signature information of many classes simultaneously.<p>
Below the list is a tab control with two tabs, ``General'' and ``Matrices''.
The ``General'' report lists the means and standard deviations for each
channel under this class's training area mask. The ``Matrices'' report
contains a dump of the Covariance, Inverse Covariance, and Triangular
Inverse Covariance matrices for the signature.<p>
This panel is also used to customize a signature, or, in other words, to 
use a signature that has been precomputed by another means instead of 
using the one 
automatically calculated using the training site. There are two methods
of doing this. The first is to change the value of the &quot;mean&quot; in the 
general report by editing it.  The second method is to press the 
``Import'' button and select a signature segment that is to be read 
and used for the selected class.<p>
If the mean has been modified or if a signature has been imported, the
signature ceases to be calculated based on the training sites and maintains
its parameters regardless of any edits to the training site.
When this occurs the class list will indicate this class
as having a ``Manual'' signature.  A ``Manual'' signature will have
a check mark in the appropriate column beside the class description.<p>
Should you once again decide to calculate the signature
based on the training site,
click on the check mark and the signature will be calculated from the training
site once again.
<P>
<H4>Import</H4>
The ``Signature Import'' panel is used to import signature segments that are
to be used as the signature for a particular class (instead of calculating
it from the training site). The training site for classes which have
imported or &quot;Manual&quot; signatures are irrelevant but are not deleted.<p>
Only ``Signature Segments'' which are compatible with the existing session
may be imported.  
Those which have a different number or sequence of
input channels will not be presented in the list of importable signatures.<p>
You may double click on the list to import the signature.
<P>
<hr>
Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/CLWORKS">CLWORKS</a><br>
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