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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 Tue Jul 15 15:48:41 NZST 2008 --><TITLE>FTtree</TITLE><META NAME="keywords" CONTENT="weka.classifiers.trees.ft.FTtree class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="FTtree";}</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 COLSPAN=2 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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target="_blank"><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/ft/FTNode.html" title="class in weka.classifiers.trees.ft"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html?weka/classifiers/trees/ft/FTtree.html" target="_top"><B>FRAMES</B></A> <A HREF="FTtree.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A 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><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">weka.classifiers.trees.ft</FONT><BR>Class FTtree</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../weka/classifiers/Classifier.html" title="class in weka.classifiers">weka.classifiers.Classifier</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../weka/classifiers/trees/lmt/LogisticBase.html" title="class in weka.classifiers.trees.lmt">weka.classifiers.trees.lmt.LogisticBase</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>weka.classifiers.trees.ft.FTtree</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.io.Serializable, java.lang.Cloneable, <A HREF="../../../../weka/core/CapabilitiesHandler.html" title="interface in weka.core">CapabilitiesHandler</A>, <A HREF="../../../../weka/core/OptionHandler.html" title="interface in weka.core">OptionHandler</A>, <A HREF="../../../../weka/core/RevisionHandler.html" title="interface in weka.core">RevisionHandler</A>, <A HREF="../../../../weka/core/WeightedInstancesHandler.html" title="interface in weka.core">WeightedInstancesHandler</A></DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../weka/classifiers/trees/ft/FTInnerNode.html" title="class in weka.classifiers.trees.ft">FTInnerNode</A>, <A HREF="../../../../weka/classifiers/trees/ft/FTLeavesNode.html" title="class in weka.classifiers.trees.ft">FTLeavesNode</A>, <A HREF="../../../../weka/classifiers/trees/ft/FTNode.html" title="class in weka.classifiers.trees.ft">FTNode</A></DD></DL><HR><DL><DT><PRE>public abstract class <B>FTtree</B><DT>extends <A HREF="../../../../weka/classifiers/trees/lmt/LogisticBase.html" title="class in weka.classifiers.trees.lmt">LogisticBase</A></DL></PRE><P>Abstract class for Functional tree structure.<P><P><DL><DT><B>Version:</B></DT> <DD>$Revision: 1.4 $</DD><DT><B>Author:</B></DT> <DD>Jo\~{a}o Gama, Carlos Ferreira</DD><DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html#weka.classifiers.trees.ft.FTtree">Serialized Form</A></DL><HR><P><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#FTtree()">FTtree</A></B>()</CODE><BR> </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#assignIDs(int)">assignIDs</A></B>(int lastID)</CODE><BR> Assigns unique IDs to all nodes in the tree</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#assignLeafModelNumbers(int)">assignLeafModelNumbers</A></B>(int leafCounter)</CODE><BR> Assigns numbers to the logistic regression models at the leaves of the tree</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#buildClassifier(weka.core.Instances)">buildClassifier</A></B>(<A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A> data)</CODE><BR> Method for building a Functional Tree (only called for the root node).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#buildTree(weka.core.Instances, weka.classifiers.functions.SimpleLinearRegression[][], double, double)">buildTree</A></B>(<A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A> data, <A HREF="../../../../weka/classifiers/functions/SimpleLinearRegression.html" title="class in weka.classifiers.functions">SimpleLinearRegression</A>[][] higherRegressions, double totalInstanceWeight, double higherNumParameters)</CODE><BR> Abstract method for building the tree structure.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#cleanup()">cleanup</A></B>()</CODE><BR> Cleanup in order to save memory.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract double[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#distributionForInstance(weka.core.Instance)">distributionForInstance</A></B>(<A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A> instance)</CODE><BR> Returns the class probabilities for an instance given by the Functional tree.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#getConstError(double[])">getConstError</A></B>(double[] probsConst)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#getModelParameters()">getModelParameters</A></B>()</CODE><BR> Returns a string describing the number of LogitBoost iterations performed at this node, the total number of LogitBoost iterations performed (including iterations at higher levels in the tree), and the number of training examples at this node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.util.Vector</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#getNodes()">getNodes</A></B>()</CODE><BR> Return a list of all inner nodes in the tree</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#getNodes(java.util.Vector)">getNodes</A></B>(java.util.Vector nodeList)</CODE><BR> Fills a list with all inner nodes in the tree</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#getNumInnerNodes()">getNumInnerNodes</A></B>()</CODE><BR> Method to count the number of inner nodes in the tree</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#getNumLeaves()">getNumLeaves</A></B>()</CODE><BR> Returns the number of leaves in the tree.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/ft/FTtree.html#getRevision()">getRevision</A></B>()</CODE><BR> Returns the revision string.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">⌨️ 快捷键说明
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