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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 1.4.2_05) on Mon Mar 07 15:26:57 NZDT 2005 --><TITLE>weka.classifiers.trees.j48</TITLE><META NAME="keywords" CONTENT="weka.classifiers.trees.j48 package"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="weka.classifiers.trees.j48";}</SCRIPT></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 COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" 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CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Class Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/BinC45ModelSelection.html" title="class in weka.classifiers.trees.j48">BinC45ModelSelection</A></B></TD><TD>Class for selecting a C4.5-like binary (!) split for a given dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/BinC45Split.html" title="class in weka.classifiers.trees.j48">BinC45Split</A></B></TD><TD>Class implementing a binary C4.5-like split on an attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/C45ModelSelection.html" title="class in weka.classifiers.trees.j48">C45ModelSelection</A></B></TD><TD>Class for selecting a C4.5-type split for a given dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/C45PruneableClassifierTree.html" title="class in weka.classifiers.trees.j48">C45PruneableClassifierTree</A></B></TD><TD>Class for handling a tree structure that can be pruned using C4.5 procedures.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/C45Split.html" title="class in weka.classifiers.trees.j48">C45Split</A></B></TD><TD>Class implementing a C4.5-type split on an attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html" title="class in weka.classifiers.trees.j48">ClassifierSplitModel</A></B></TD><TD>Abstract class for classification models that can be used recursively to split the data.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/ClassifierTree.html" title="class in weka.classifiers.trees.j48">ClassifierTree</A></B></TD><TD>Class for handling a tree structure used for classification.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html" title="class in weka.classifiers.trees.j48">Distribution</A></B></TD><TD>Class for handling a distribution of class values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/EntropyBasedSplitCrit.html" title="class in weka.classifiers.trees.j48">EntropyBasedSplitCrit</A></B></TD><TD>"Abstract" class for computing splitting criteria based on the entropy of a class distribution.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/EntropySplitCrit.html" title="class in weka.classifiers.trees.j48">EntropySplitCrit</A></B></TD><TD>Class for computing the entropy for a given distribution.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/GainRatioSplitCrit.html" title="class in weka.classifiers.trees.j48">GainRatioSplitCrit</A></B></TD><TD>Class for computing the gain ratio for a given distribution.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/InfoGainSplitCrit.html" title="class in weka.classifiers.trees.j48">InfoGainSplitCrit</A></B></TD><TD>Class for computing the information gain for a given distribution.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/ModelSelection.html" title="class in weka.classifiers.trees.j48">ModelSelection</A></B></TD><TD>Abstract class for model selection criteria.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/NBTreeClassifierTree.html" title="class in weka.classifiers.trees.j48">NBTreeClassifierTree</A></B></TD><TD>Class for handling a naive bayes tree structure used for classification.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/NBTreeModelSelection.html" title="class in weka.classifiers.trees.j48">NBTreeModelSelection</A></B></TD><TD>Class for selecting a NB tree split.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/NBTreeNoSplit.html" title="class in weka.classifiers.trees.j48">NBTreeNoSplit</A></B></TD><TD>Class implementing a "no-split"-split (leaf node) for naive bayes trees.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/NBTreeSplit.html" title="class in weka.classifiers.trees.j48">NBTreeSplit</A></B></TD><TD>Class implementing a NBTree split on an attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/NoSplit.html" title="class in weka.classifiers.trees.j48">NoSplit</A></B></TD><TD>Class implementing a "no-split"-split.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/PruneableClassifierTree.html" title="class in weka.classifiers.trees.j48">PruneableClassifierTree</A></B></TD><TD>Class for handling a tree structure that can be pruned using a pruning set.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/SplitCriterion.html" title="class in weka.classifiers.trees.j48">SplitCriterion</A></B></TD><TD>Abstract class for computing splitting criteria with respect to distributions of class values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/classifiers/trees/j48/Stats.html" title="class in weka.classifiers.trees.j48">Stats</A></B></TD><TD>Class implementing a statistical routine needed by J48 to compute its error estimate.</TD></TR></TABLE> <P><HR><!-- ======= START OF BOTTOM NAVBAR ====== --><A NAME="navbar_bottom"><!-- --></A><A HREF="#skip-navbar_bottom" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Package</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Class</FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../Tutorial.pdf"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="http://www.cs.waikato.ac.nz/ml/weka/index.html"><FONT CLASS="NavBarFont1"><B>Weka's home</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../weka/classifiers/trees/adtree/package-summary.html"><B>PREV PACKAGE</B></A> <A 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