📄 som_gapindex.html

📁 Kohonen的SOM软件包

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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><html><head><title>SOM Toolbox / som_gapindex </title></head><body bgcolor=#f0f0f0><table border=0 width="100%" cellpadding=0 cellspacing=0><tr><td valign=baseline><font size=+2>SOM Toolbox</font></td><td valign=baseline align=center><a href="somtoolbox.html">Online documentation</td><td valign=baseline align=right><a href="http://www.cis.hut.fi/projects/somtoolbox/" target="_top">http://www.cis.hut.fi/projects/somtoolbox/</a></td></tr></table><hr><H1> som_gapindex </H1><P><B> [t,r,Cd,S] = som_gapindex(sM, base, between)</B></P><PRE> SOM_GAPINDEX Gap clustering evaluation index. [t,r] = som_gapindex(sM, base, [between])  Input and output arguments ([]'s are optional):      sM        (struct) map struct    base      (vector) clusters indeces for each map unit, map units                       with index<=0 or NaN are not taken into account    [between] (vector) indices of prototypes which are "between" clusters:                       the associated distances are doubled     t         (scalar) Gap index index for the clustering (=mean(r))    r         (vector) maximum Gap index for each cluster (size max(base) x 1)      See also  SOM_KMEANS, KMEANS_CLUSTERS, SOM_GAPINDEX.</PRE><p><hr><br><center>[ <a href="somtoolbox.html">SOM Toolbox online doc</a> ]</center><br><!-- Last updated: May 30 2002 --></body></html>

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