classifiertree.html

< 数据挖掘--实用机器学习技术及java实现> 一书结合数据挖掘和机器学习的知识,作者陈述了自动挖掘模式的基础理论,并且以java语言实现了具有代表性的各类数据挖掘方法.例如:class

<A NAME="m_sons"><!-- --></A><H3>
m_sons</H3>
<PRE>
protected <A HREF="../../../weka/classifiers/j48/ClassifierTree.html">ClassifierTree</A>[] <B>m_sons</B></PRE>
<DL>
<DD>References to sons.</DL>
<HR>

<A NAME="m_isLeaf"><!-- --></A><H3>
m_isLeaf</H3>
<PRE>
protected boolean <B>m_isLeaf</B></PRE>
<DL>
<DD>True if node is leaf.</DL>
<HR>

<A NAME="m_isEmpty"><!-- --></A><H3>
m_isEmpty</H3>
<PRE>
protected boolean <B>m_isEmpty</B></PRE>
<DL>
<DD>True if node is empty.</DL>
<HR>

<A NAME="m_train"><!-- --></A><H3>
m_train</H3>
<PRE>
protected <A HREF="../../../weka/core/Instances.html">Instances</A> <B>m_train</B></PRE>
<DL>
<DD>The training instances.</DL>
<HR>

<A NAME="m_test"><!-- --></A><H3>
m_test</H3>
<PRE>
protected <A HREF="../../../weka/classifiers/j48/Distribution.html">Distribution</A> <B>m_test</B></PRE>
<DL>
<DD>The pruning instances.</DL>
<HR>

<A NAME="m_id"><!-- --></A><H3>
m_id</H3>
<PRE>
protected int <B>m_id</B></PRE>
<DL>
<DD>The id for the node.</DL>

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<A NAME="ClassifierTree(weka.classifiers.j48.ModelSelection)"><!-- --></A><H3>
ClassifierTree</H3>
<PRE>
public <B>ClassifierTree</B>(<A HREF="../../../weka/classifiers/j48/ModelSelection.html">ModelSelection</A>&nbsp;toSelectLocModel)</PRE>
<DL>
<DD>Constructor.</DL>

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<A NAME="nextID()"><!-- --></A><H3>
nextID</H3>
<PRE>
protected static long <B>nextID</B>()</PRE>
<DL>
<DD>Gets the next unique node ID.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the next unique node ID.</DL>
</DD>
</DL>
<HR>

<A NAME="resetID()"><!-- --></A><H3>
resetID</H3>
<PRE>
protected static void <B>resetID</B>()</PRE>
<DL>
<DD>Resets the unique node ID counter (e.g.
 between repeated separate print types)<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="buildClassifier(weka.core.Instances)"><!-- --></A><H3>
buildClassifier</H3>
<PRE>
public void <B>buildClassifier</B>(<A HREF="../../../weka/core/Instances.html">Instances</A>&nbsp;data)
                     throws java.lang.Exception</PRE>
<DL>
<DD>Method for building a classifier tree.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="buildTree(weka.core.Instances, boolean)"><!-- --></A><H3>
buildTree</H3>
<PRE>
public void <B>buildTree</B>(<A HREF="../../../weka/core/Instances.html">Instances</A>&nbsp;data,
                      boolean&nbsp;keepData)
               throws java.lang.Exception</PRE>
<DL>
<DD>Builds the tree structure.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - the data for which the tree structure is to be
 generated.<DD><CODE>keepData</CODE> - is training data to be kept?<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="buildTree(weka.core.Instances, weka.core.Instances, boolean)"><!-- --></A><H3>
buildTree</H3>
<PRE>
public void <B>buildTree</B>(<A HREF="../../../weka/core/Instances.html">Instances</A>&nbsp;train,
                      <A HREF="../../../weka/core/Instances.html">Instances</A>&nbsp;test,
                      boolean&nbsp;keepData)
               throws java.lang.Exception</PRE>
<DL>
<DD>Builds the tree structure with hold out set<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>train</CODE> - the data for which the tree structure is to be
 generated.<DD><CODE>test</CODE> - the test data for potential pruning<DD><CODE>keepData</CODE> - is training Data to be kept?<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="classifyInstance(weka.core.Instance)"><!-- --></A><H3>
classifyInstance</H3>
<PRE>
public double <B>classifyInstance</B>(<A HREF="../../../weka/core/Instance.html">Instance</A>&nbsp;instance)
                        throws java.lang.Exception</PRE>
<DL>
<DD>Classifies an instance.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="cleanup(weka.core.Instances)"><!-- --></A><H3>
cleanup</H3>
<PRE>
public final void <B>cleanup</B>(<A HREF="../../../weka/core/Instances.html">Instances</A>&nbsp;justHeaderInfo)</PRE>
<DL>
<DD>Cleanup in order to save memory.<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="distributionForInstance(weka.core.Instance, boolean)"><!-- --></A><H3>
distributionForInstance</H3>
<PRE>
public final double[] <B>distributionForInstance</B>(<A HREF="../../../weka/core/Instance.html">Instance</A>&nbsp;instance,
                                              boolean&nbsp;useLaplace)
                                       throws java.lang.Exception</PRE>
<DL>
<DD>Returns class probabilities for a weighted instance.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="assignIDs(int)"><!-- --></A><H3>
assignIDs</H3>
<PRE>
public int <B>assignIDs</B>(int&nbsp;lastID)</PRE>
<DL>
<DD>Assigns a uniqe id to every node in the tree.<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="graph()"><!-- --></A><H3>
graph</H3>
<PRE>
public java.lang.String <B>graph</B>()
                       throws java.lang.Exception</PRE>
<DL>
<DD>Returns graph describing the tree.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../weka/core/Drawable.html#graph()">graph</A></CODE> in interface <CODE><A HREF="../../../weka/core/Drawable.html">Drawable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="prefix()"><!-- --></A><H3>
prefix</H3>
<PRE>
public java.lang.String <B>prefix</B>()
                        throws java.lang.Exception</PRE>
<DL>
<DD>Returns tree in prefix order.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="toSource(java.lang.String)"><!-- --></A><H3>
toSource</H3>
<PRE>
public java.lang.StringBuffer[] <B>toSource</B>(java.lang.String&nbsp;className)
                                  throws java.lang.Exception</PRE>
<DL>
<DD>Returns source code for the tree as an if-then statement. The 
 class is assigned to variable "p", and assumes the tested 
 instance is named "i". The results are returned as two stringbuffers: 
 a section of code for assignment of the class, and a section of
 code containing support code (eg: other support methods).<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>className</CODE> - the classname that this static classifier has<DT><B>Returns:</B><DD>an array containing two stringbuffers, the first string containing
 assignment code, and the second containing source for support code.<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="numLeaves()"><!-- --></A><H3>
numLeaves</H3>
<PRE>
public int <B>numLeaves</B>()</PRE>
<DL>
<DD>Returns number of leaves in tree structure.<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="numNodes()"><!-- --></A><H3>
numNodes</H3>
<PRE>
public int <B>numNodes</B>()</PRE>
<DL>
<DD>Returns number of nodes in tree structure.<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Prints tree structure.<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getNewTree(weka.core.Instances)"><!-- --></A><H3>
getNewTree</H3>
<PRE>
protected <A HREF="../../../weka/classifiers/j48/ClassifierTree.html">ClassifierTree</A> <B>getNewTree</B>(<A HREF="../../../weka/core/Instances.html">Instances</A>&nbsp;data)
                             throws java.lang.Exception</PRE>
<DL>
<DD>Returns a newly created tree.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - the training data<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="getNewTree(weka.core.Instances, weka.core.Instances)"><!-- --></A><H3>
getNewTree</H3>
<PRE>
protected <A HREF="../../../weka/classifiers/j48/ClassifierTree.html">ClassifierTree</A> <B>getNewTree</B>(<A HREF="../../../weka/core/Instances.html">Instances</A>&nbsp;train,
                                    <A HREF="../../../weka/core/Instances.html">Instances</A>&nbsp;test)
                             throws java.lang.Exception</PRE>
<DL>
<DD>Returns a newly created tree.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - the training data<DD><CODE>test</CODE> - the pruning data.<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
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