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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_13) on Mon Jul 14 01:36:54 CEST 2008 --><TITLE>com.rapidminer.operator.validation.clustering.itemdistribution (RapidMiner Class Documentation)</TITLE><META NAME="keywords" CONTENT="com.rapidminer.operator.validation.clustering.itemdistribution package"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="com.rapidminer.operator.validation.clustering.itemdistribution (RapidMiner Class Documentation)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD 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HREF="../../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><H2>Package com.rapidminer.operator.validation.clustering.itemdistribution</H2>Contains classes for evaluating the distribution of items among clusters.<P><B>See:</B><BR> <A HREF="#package_description"><B>Description</B></A><P><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Interface Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../../../com/rapidminer/operator/validation/clustering/itemdistribution/ItemDistributionMeasure.html" title="interface in com.rapidminer.operator.validation.clustering.itemdistribution">ItemDistributionMeasure</A></B></TD><TD>Evaluates how well items are distributed over a set of classes.</TD></TR></TABLE> <P><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Class Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../../../com/rapidminer/operator/validation/clustering/itemdistribution/GiniCoefficient.html" title="class in com.rapidminer.operator.validation.clustering.itemdistribution">GiniCoefficient</A></B></TD><TD>Normalized Gini Coefficient.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../../../com/rapidminer/operator/validation/clustering/itemdistribution/ItemDistributionEvaluator.html" title="class in com.rapidminer.operator.validation.clustering.itemdistribution">ItemDistributionEvaluator</A></B></TD><TD>Evaluates flat cluster models on how well the items are distributed over the clusters.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../../../com/rapidminer/operator/validation/clustering/itemdistribution/SumOfSquares.html" title="class in com.rapidminer.operator.validation.clustering.itemdistribution">SumOfSquares</A></B></TD><TD>Calculates an item distribution measure by summing up the squares of the fraction of items in each cluster.</TD></TR></TABLE> <P><A NAME="package_description"><!-- --></A><H2>Package com.rapidminer.operator.validation.clustering.itemdistribution Description</H2><P>Contains classes for evaluating the distribution of items among clusters.<P><P><DL></DL><HR><!-- ======= START OF BOTTOM NAVBAR ====== --><A NAME="navbar_bottom"><!-- --></A><A HREF="#skip-navbar_bottom" title="Skip navigation links"></A><TABLE 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