graftsplit.html

数据挖掘的最常用工具。由于开源

<DL>
<DD>Prints left side of condition satisfied by instances.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html#leftSide(weka.core.Instances)">leftSide</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html" title="class in weka.classifiers.trees.j48">ClassifierSplitModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - the data.</DL>
</DD>
</DL>
<HR>

<A NAME="attribute()"><!-- --></A><H3>
attribute</H3>
<PRE>
public int <B>attribute</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the index of the attribute to split on</DL>
</DD>
</DL>
<HR>

<A NAME="rightSide(int, weka.core.Instances)"><!-- --></A><H3>
rightSide</H3>
<PRE>
public final java.lang.String <B>rightSide</B>(int&nbsp;index,
                                        <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data)</PRE>
<DL>
<DD>Prints condition satisfied by instances in subset index.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html#rightSide(int, weka.core.Instances)">rightSide</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html" title="class in weka.classifiers.trees.j48">ClassifierSplitModel</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="sourceExpression(int, weka.core.Instances)"><!-- --></A><H3>
sourceExpression</H3>
<PRE>
public final java.lang.String <B>sourceExpression</B>(int&nbsp;index,
                                               <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data)</PRE>
<DL>
<DD>Returns a string containing java source code equivalent to the test
 made at this node. The instance being tested is called "i".
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html#sourceExpression(int, weka.core.Instances)">sourceExpression</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html" title="class in weka.classifiers.trees.j48">ClassifierSplitModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - index of the nominal value tested<DD><CODE>data</CODE> - the data containing instance structure info
<DT><B>Returns:</B><DD>a value of type 'String'</DL>
</DD>
</DL>
<HR>

<A NAME="weights(weka.core.Instance)"><!-- --></A><H3>
weights</H3>
<PRE>
public double[] <B>weights</B>(<A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;instance)</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html#weights(weka.core.Instance)">ClassifierSplitModel</A></CODE></B></DD>
<DD>Returns weights if instance is assigned to more than one subset.
 Returns null if instance is only assigned to one subset.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html#weights(weka.core.Instance)">weights</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html" title="class in weka.classifiers.trees.j48">ClassifierSplitModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instance</CODE> - the instance to produce the weights for
<DT><B>Returns:</B><DD>a double array of weights, null if only belongs to one subset</DL>
</DD>
</DL>
<HR>

<A NAME="whichSubset(weka.core.Instance)"><!-- --></A><H3>
whichSubset</H3>
<PRE>
public int <B>whichSubset</B>(<A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;instance)</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html#whichSubset(weka.core.Instance)">ClassifierSplitModel</A></CODE></B></DD>
<DD>Returns index of subset instance is assigned to.
 Returns -1 if instance is assigned to more than one subset.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html#whichSubset(weka.core.Instance)">whichSubset</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html" title="class in weka.classifiers.trees.j48">ClassifierSplitModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instance</CODE> - the instance for which to determine the subset
<DT><B>Returns:</B><DD>an int indicating the subset this instance belongs to</DL>
</DD>
</DL>
<HR>

<A NAME="splitPoint()"><!-- --></A><H3>
splitPoint</H3>
<PRE>
public double <B>splitPoint</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the value of the split point</DL>
</DD>
</DL>
<HR>

<A NAME="maxClassForSubsetOfInterest()"><!-- --></A><H3>
maxClassForSubsetOfInterest</H3>
<PRE>
public int <B>maxClassForSubsetOfInterest</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the dominate class for the subset of interest</DL>
</DD>
</DL>
<HR>

<A NAME="laplaceForSubsetOfInterest()"><!-- --></A><H3>
laplaceForSubsetOfInterest</H3>
<PRE>
public double <B>laplaceForSubsetOfInterest</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the laplace value for maxClass of subset of interest</DL>
</DD>
</DL>
<HR>

<A NAME="testType()"><!-- --></A><H3>
testType</H3>
<PRE>
public int <B>testType</B>()</PRE>
<DL>
<DD>returns the test type
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>value of testtype</DL>
</DD>
</DL>
<HR>

<A NAME="compareTo(java.lang.Object)"><!-- --></A><H3>
compareTo</H3>
<PRE>
public int <B>compareTo</B>(java.lang.Object&nbsp;g)</PRE>
<DL>
<DD>method needed for sorting a collection of GraftSplits by laplace value
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>compareTo</CODE> in interface <CODE>java.lang.Comparable</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g</CODE> - the graft split to compare to this one
<DT><B>Returns:</B><DD>-1, 0, or 1 if this GraftSplit laplace is <, = or > than that of g</DL>
</DD>
</DL>
<HR>

<A NAME="classProb(int, weka.core.Instance, int)"><!-- --></A><H3>
classProb</H3>
<PRE>
public final double <B>classProb</B>(int&nbsp;classIndex,
                              <A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;instance,
                              int&nbsp;theSubset)
                       throws java.lang.Exception</PRE>
<DL>
<DD>returns the probability for instance for the specified class
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html#classProb(int, weka.core.Instance, int)">classProb</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html" title="class in weka.classifiers.trees.j48">ClassifierSplitModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>classIndex</CODE> - the index of the class<DD><CODE>instance</CODE> - the instance to get the probability for<DD><CODE>theSubset</CODE> - the subset
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="toString(weka.core.Instances)"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>(<A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data)</PRE>
<DL>
<DD>method for returning information about this GraftSplit
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - instances for determining names of attributes and values
<DT><B>Returns:</B><DD>a string showing this GraftSplit's information</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>
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