ballnode.html

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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 15:48:46 NZST 2008 --><TITLE>BallNode</TITLE><META NAME="keywords" CONTENT="weka.core.neighboursearch.balltrees.BallNode class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){    parent.document.title="BallNode";}</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" CLASS="NavBarCell1">    <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="http://www.cs.waikato.ac.nz/ml/weka/" target="_blank"><FONT CLASS="NavBarFont1"><B>Weka's home</B></FONT></A>&nbsp;</TD>  </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">&nbsp;PREV CLASS&nbsp;&nbsp;<A HREF="../../../../weka/core/neighboursearch/balltrees/BallSplitter.html" title="class in weka.core.neighboursearch.balltrees"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">  <A HREF="../../../../index.html?weka/core/neighboursearch/balltrees/BallNode.html" target="_top"><B>FRAMES</B></A>  &nbsp;&nbsp;<A HREF="BallNode.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;&nbsp;<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:&nbsp;NESTED&nbsp;|&nbsp;<A HREF="#field_summary">FIELD</A>&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL:&nbsp;<A HREF="#field_detail">FIELD</A>&nbsp;|&nbsp;<A HREF="#constructor_detail">CONSTR</A>&nbsp;|&nbsp;<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.core.neighboursearch.balltrees</FONT><BR>Class BallNode</H2><PRE>java.lang.Object  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>weka.core.neighboursearch.balltrees.BallNode</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.io.Serializable, <A HREF="../../../../weka/core/RevisionHandler.html" title="interface in weka.core">RevisionHandler</A></DD></DL><HR><DL><DT><PRE>public class <B>BallNode</B><DT>extends java.lang.Object<DT>implements java.io.Serializable, <A HREF="../../../../weka/core/RevisionHandler.html" title="interface in weka.core">RevisionHandler</A></DL></PRE><P>Class representing a node of a BallTree.<P><P><DL><DT><B>Version:</B></DT>  <DD>$Revision: 1.2 $</DD><DT><B>Author:</B></DT>  <DD>Ashraf M. Kibriya (amk14[at-the-rate]cs[dot]waikato[dot]ac[dot]nz)</DD><DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html#weka.core.neighboursearch.balltrees.BallNode">Serialized Form</A></DL><HR><P><!-- =========== FIELD SUMMARY =========== --><A NAME="field_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>Field Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>&nbsp;int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#m_End">m_End</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The end index of the portion of the master index array,  which stores indices of the instances/points the node  contains.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>&nbsp;<A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html" title="class in weka.core.neighboursearch.balltrees">BallNode</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#m_Left">m_Left</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The left child of the node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>&nbsp;int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#m_NodeNumber">m_NodeNumber</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The node number/id.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>&nbsp;int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#m_NumInstances">m_NumInstances</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of instances/points in the node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>&nbsp;<A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html" title="class in weka.core.neighboursearch.balltrees">BallNode</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#m_Right">m_Right</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The right child of the node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>&nbsp;int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#m_SplitAttrib">m_SplitAttrib</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The attribute that splits this node (not  always used).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>&nbsp;double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#m_SplitVal">m_SplitVal</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The value of m_SpiltAttrib that splits this node (not always used).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>&nbsp;int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#m_Start">m_Start</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The start index of the portion of the master index array,  which stores the indices of the instances/points the node  contains.</TD></TR></TABLE>&nbsp;<!-- ======== 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/core/neighboursearch/balltrees/BallNode.html#BallNode(int)">BallNode</A></B>(int&nbsp;nodeNumber)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructor.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#BallNode(int, int, int)">BallNode</A></B>(int&nbsp;start,         int&nbsp;end,         int&nbsp;nodeNumber)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates a new instance of BallNode.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#BallNode(int, int, int, weka.core.Instance, double)">BallNode</A></B>(int&nbsp;start,         int&nbsp;end,         int&nbsp;nodeNumber,         <A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;pivot,         double&nbsp;radius)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates a new instance of BallNode.</TD></TR></TABLE>&nbsp;<!-- ========== 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>static&nbsp;<A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#calcCentroidPivot(int[], weka.core.Instances)">calcCentroidPivot</A></B>(int[]&nbsp;instList,                  <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;insts)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Calculates the centroid pivot of a node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static&nbsp;<A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#calcCentroidPivot(int, int, int[], weka.core.Instances)">calcCentroidPivot</A></B>(int&nbsp;start,                  int&nbsp;end,                  int[]&nbsp;instList,                  <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;insts)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Calculates the centroid pivot of a node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static&nbsp;<A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#calcPivot(weka.core.neighboursearch.balltrees.BallNode, weka.core.neighboursearch.balltrees.BallNode, weka.core.Instances)">calcPivot</A></B>(<A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html" title="class in weka.core.neighboursearch.balltrees">BallNode</A>&nbsp;child1,          <A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html" title="class in weka.core.neighboursearch.balltrees">BallNode</A>&nbsp;child2,          <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;insts)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Calculates the centroid pivot of a node based on its two child nodes (if merging two nodes).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static&nbsp;double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#calcRadius(weka.core.neighboursearch.balltrees.BallNode, weka.core.neighboursearch.balltrees.BallNode, weka.core.Instance, weka.core.DistanceFunction)">calcRadius</A></B>(<A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html" title="class in weka.core.neighboursearch.balltrees">BallNode</A>&nbsp;child1,           <A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html" title="class in weka.core.neighboursearch.balltrees">BallNode</A>&nbsp;child2,           <A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;pivot,           <A HREF="../../../../weka/core/DistanceFunction.html" title="interface in weka.core">DistanceFunction</A>&nbsp;distanceFunction)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Calculates the radius of a node based on its two  child nodes (if merging two nodes).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static&nbsp;double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#calcRadius(int[], weka.core.Instances, weka.core.Instance, weka.core.DistanceFunction)">calcRadius</A></B>(int[]&nbsp;instList,           <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;insts,           <A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;pivot,           <A HREF="../../../../weka/core/DistanceFunction.html" title="interface in weka.core">DistanceFunction</A>&nbsp;distanceFunction)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Calculates the radius of node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static&nbsp;double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#calcRadius(int, int, int[], weka.core.Instances, weka.core.Instance, weka.core.DistanceFunction)">calcRadius</A></B>(int&nbsp;start,           int&nbsp;end,           int[]&nbsp;instList,           <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;insts,           <A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;pivot,           <A HREF="../../../../weka/core/DistanceFunction.html" title="interface in weka.core">DistanceFunction</A>&nbsp;distanceFunction)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Calculates the radius of a node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>&nbsp;<A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/core/neighboursearch/balltrees/BallNode.html#getPivot()">getPivot</A></B>()</CODE><BR>

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