covertree.html

数据挖掘的最常用工具。由于开源

 building the Cover Tree</DL>
</DD>
</DL>
<HR>

<A NAME="update(weka.core.Instance)"><!-- --></A><H3>
update</H3>
<PRE>
public void <B>update</B>(<A HREF="../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;ins)
            throws java.lang.Exception</PRE>
<DL>
<DD>Adds an instance to the cover tree. 
 P.S.: The current version doesn't allow
 addition of instances after batch construction.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html#update(weka.core.Instance)">update</A></CODE> in class <CODE><A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html" title="class in weka.core.neighboursearch">NearestNeighbourSearch</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>ins</CODE> - The instance to add.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - Alway throws this, as current 
 implementation doesn't allow addition of instances 
 after building.</DL>
</DD>
</DL>
<HR>

<A NAME="addInstanceInfo(weka.core.Instance)"><!-- --></A><H3>
addInstanceInfo</H3>
<PRE>
public void <B>addInstanceInfo</B>(<A HREF="../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;ins)</PRE>
<DL>
<DD>Adds the given instance info. This implementation updates only the 
 range datastructures of the EuclideanDistance. Nothing is 
 required to be updated in the built Cover Tree.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html#addInstanceInfo(weka.core.Instance)">addInstanceInfo</A></CODE> in class <CODE><A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html" title="class in weka.core.neighboursearch">NearestNeighbourSearch</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>ins</CODE> - The instance to add the information of. Usually this is
                        the test instance supplied to update the range of 
                        attributes in the distance function.</DL>
</DD>
</DL>
<HR>

<A NAME="setDistanceFunction(weka.core.DistanceFunction)"><!-- --></A><H3>
setDistanceFunction</H3>
<PRE>
public void <B>setDistanceFunction</B>(<A HREF="../../../weka/core/DistanceFunction.html" title="interface in weka.core">DistanceFunction</A>&nbsp;df)
                         throws java.lang.Exception</PRE>
<DL>
<DD>Sets the distance function to use for nearest neighbour search.
 Currently only EuclideanDistance is supported.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html#setDistanceFunction(weka.core.DistanceFunction)">setDistanceFunction</A></CODE> in class <CODE><A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html" title="class in weka.core.neighboursearch">NearestNeighbourSearch</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>df</CODE> - the distance function to use
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if not EuclideanDistance</DL>
</DD>
</DL>
<HR>

<A NAME="baseTipText()"><!-- --></A><H3>
baseTipText</H3>
<PRE>
public java.lang.String <B>baseTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>tip text for this property suitable for
                        displaying in the explorer/experimenter gui</DL>
</DD>
</DL>
<HR>

<A NAME="getBase()"><!-- --></A><H3>
getBase</H3>
<PRE>
public double <B>getBase</B>()</PRE>
<DL>
<DD>Returns the base in use for expansion constant.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>base    currently in use.</DL>
</DD>
</DL>
<HR>

<A NAME="setBase(double)"><!-- --></A><H3>
setBase</H3>
<PRE>
public void <B>setBase</B>(double&nbsp;b)</PRE>
<DL>
<DD>Sets the base to use for expansion constant.
 The 2 in 2^i in the paper.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - the new base;</DL>
</DD>
</DL>
<HR>

<A NAME="measureTreeSize()"><!-- --></A><H3>
measureTreeSize</H3>
<PRE>
public double <B>measureTreeSize</B>()</PRE>
<DL>
<DD>Returns the size of the tree. 
 (number of internal nodes + number of leaves)
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the size of the tree</DL>
</DD>
</DL>
<HR>

<A NAME="measureNumLeaves()"><!-- --></A><H3>
measureNumLeaves</H3>
<PRE>
public double <B>measureNumLeaves</B>()</PRE>
<DL>
<DD>Returns the number of leaves.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of leaves</DL>
</DD>
</DL>
<HR>

<A NAME="measureMaxDepth()"><!-- --></A><H3>
measureMaxDepth</H3>
<PRE>
public double <B>measureMaxDepth</B>()</PRE>
<DL>
<DD>Returns the depth of the tree.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of rules</DL>
</DD>
</DL>
<HR>

<A NAME="enumerateMeasures()"><!-- --></A><H3>
enumerateMeasures</H3>
<PRE>
public java.util.Enumeration <B>enumerateMeasures</B>()</PRE>
<DL>
<DD>Returns an enumeration of the additional measure names.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/AdditionalMeasureProducer.html#enumerateMeasures()">enumerateMeasures</A></CODE> in interface <CODE><A HREF="../../../weka/core/AdditionalMeasureProducer.html" title="interface in weka.core">AdditionalMeasureProducer</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html#enumerateMeasures()">enumerateMeasures</A></CODE> in class <CODE><A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html" title="class in weka.core.neighboursearch">NearestNeighbourSearch</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>an enumeration of the measure names</DL>
</DD>
</DL>
<HR>

<A NAME="getMeasure(java.lang.String)"><!-- --></A><H3>
getMeasure</H3>
<PRE>
public double <B>getMeasure</B>(java.lang.String&nbsp;additionalMeasureName)</PRE>
<DL>
<DD>Returns the value of the named measure.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/AdditionalMeasureProducer.html#getMeasure(java.lang.String)">getMeasure</A></CODE> in interface <CODE><A HREF="../../../weka/core/AdditionalMeasureProducer.html" title="interface in weka.core">AdditionalMeasureProducer</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html#getMeasure(java.lang.String)">getMeasure</A></CODE> in class <CODE><A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html" title="class in weka.core.neighboursearch">NearestNeighbourSearch</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>additionalMeasureName</CODE> - the name of the measure to query for 
                                        its value
<DT><B>Returns:</B><DD>the value of the named measure
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the named measure is not supported</DL>
</DD>
</DL>
<HR>

<A NAME="getRevision()"><!-- --></A><H3>
getRevision</H3>
<PRE>
public java.lang.String <B>getRevision</B>()</PRE>
<DL>
<DD>Returns the revision string.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/RevisionHandler.html#getRevision()">getRevision</A></CODE> in interface <CODE><A HREF="../../../weka/core/RevisionHandler.html" title="interface in weka.core">RevisionHandler</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the revision</DL>
</DD>
</DL>
<HR>

<A NAME="main(java.lang.String[])"><!-- --></A><H3>
main</H3>
<PRE>
public static void <B>main</B>(java.lang.String[]&nbsp;args)</PRE>
<DL>
<DD>Method for testing the class from command line.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>args</CODE> - The supplied command line arguments.</DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
<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=2 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>&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;<A HREF="../../../weka/core/neighboursearch/BallTree.html" title="class in weka.core.neighboursearch"><B>PREV CLASS</B></A>&nbsp;
&nbsp;<A HREF="../../../weka/core/neighboursearch/CoverTree.CoverTreeNode.html" title="class in weka.core.neighboursearch"><B>NEXT CLASS</B></A></FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
  <A HREF="../../../index.html?weka/core/neighboursearch/CoverTree.html" target="_top"><B>FRAMES</B></A>  &nbsp;
&nbsp;<A HREF="CoverTree.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;<A HREF="#nested_class_summary">NESTED</A>&nbsp;|&nbsp;FIELD&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;FIELD&nbsp;|&nbsp;<A HREF="#constructor_detail">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<A NAME="skip-navbar_bottom"></A>
<!-- ======== END OF BOTTOM NAVBAR ======= -->

<HR>

</BODY>
</HTML>