c45pruneableclassifiertreeg.html

数据挖掘的最常用工具。由于开源

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<A NAME="C45PruneableClassifierTreeG(weka.classifiers.trees.j48.ModelSelection, boolean, float, boolean, boolean, boolean)"><!-- --></A><H3>
C45PruneableClassifierTreeG</H3>
<PRE>
public <B>C45PruneableClassifierTreeG</B>(<A HREF="../../../../weka/classifiers/trees/j48/ModelSelection.html" title="class in weka.classifiers.trees.j48">ModelSelection</A>&nbsp;toSelectLocModel,
                                   boolean&nbsp;pruneTree,
                                   float&nbsp;cf,
                                   boolean&nbsp;raiseTree,
                                   boolean&nbsp;relabel,
                                   boolean&nbsp;cleanup)
                            throws java.lang.Exception</PRE>
<DL>
<DD>Constructor for pruneable tree structure. Stores reference
 to associated training data at each node.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>toSelectLocModel</CODE> - selection method for local splitting model<DD><CODE>pruneTree</CODE> - true if the tree is to be pruned<DD><CODE>cf</CODE> - the confidence factor for pruning<DD><CODE>raiseTree</CODE> - <DD><CODE>cleanup</CODE> - 
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DL>
<HR>

<A NAME="C45PruneableClassifierTreeG(weka.classifiers.trees.j48.ModelSelection, weka.core.Instances, weka.classifiers.trees.j48.ClassifierSplitModel, boolean, float, boolean, boolean, boolean, boolean)"><!-- --></A><H3>
C45PruneableClassifierTreeG</H3>
<PRE>
public <B>C45PruneableClassifierTreeG</B>(<A HREF="../../../../weka/classifiers/trees/j48/ModelSelection.html" title="class in weka.classifiers.trees.j48">ModelSelection</A>&nbsp;toSelectLocModel,
                                   <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data,
                                   <A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html" title="class in weka.classifiers.trees.j48">ClassifierSplitModel</A>&nbsp;gs,
                                   boolean&nbsp;prune,
                                   float&nbsp;cf,
                                   boolean&nbsp;raise,
                                   boolean&nbsp;isLeaf,
                                   boolean&nbsp;relabel,
                                   boolean&nbsp;cleanup)</PRE>
<DL>
<DD>Constructor for pruneable tree structure. Used to create new nodes
 in the tree during grafting.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>toSelectLocModel</CODE> - selection method for local splitting model<DD><CODE>data</CODE> - the dta used to produce split model<DD><CODE>gs</CODE> - the split model<DD><CODE>prune</CODE> - true if the tree is to be pruned<DD><CODE>cf</CODE> - the confidence factor for pruning<DD><CODE>raise</CODE> - <DD><CODE>isLeaf</CODE> - if this node is a leaf or not<DD><CODE>relabel</CODE> - whether relabeling occured<DD><CODE>cleanup</CODE> - 
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DL>

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<A NAME="getCapabilities()"><!-- --></A><H3>
getCapabilities</H3>
<PRE>
public <A HREF="../../../../weka/core/Capabilities.html" title="class in weka.core">Capabilities</A> <B>getCapabilities</B>()</PRE>
<DL>
<DD>Returns default capabilities of the classifier tree.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/core/CapabilitiesHandler.html#getCapabilities()">getCapabilities</A></CODE> in interface <CODE><A HREF="../../../../weka/core/CapabilitiesHandler.html" title="interface in weka.core">CapabilitiesHandler</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierTree.html#getCapabilities()">getCapabilities</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierTree.html" title="class in weka.classifiers.trees.j48">ClassifierTree</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the capabilities of this classifier tree<DT><B>See Also:</B><DD><A HREF="../../../../weka/core/Capabilities.html" title="class in weka.core"><CODE>Capabilities</CODE></A></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" title="class in weka.core">Instances</A>&nbsp;data)
                     throws java.lang.Exception</PRE>
<DL>
<DD>Method for building a pruneable classifier tree.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierTree.html#buildClassifier(weka.core.Instances)">buildClassifier</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierTree.html" title="class in weka.classifiers.trees.j48">ClassifierTree</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>datathe</CODE> - data for building the tree
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="collapse()"><!-- --></A><H3>
collapse</H3>
<PRE>
public final void <B>collapse</B>()</PRE>
<DL>
<DD>Collapses a tree to a node if training error doesn't increase.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="prune()"><!-- --></A><H3>
prune</H3>
<PRE>
public void <B>prune</B>()
           throws java.lang.Exception</PRE>
<DL>
<DD>Prunes a tree using C4.5's pruning procedure.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="doGrafting(weka.core.Instances)"><!-- --></A><H3>
doGrafting</H3>
<PRE>
public void <B>doGrafting</B>(<A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data)
                throws java.lang.Exception</PRE>
<DL>
<DD>Initializes variables for grafting.
 sets up limits array (for numeric attributes) and calls 
 the recursive function traverseTree.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - the data for the tree
<DT><B>Throws:</B>
<DD><CODE>exception</CODE> - if anything goes wrong
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="setDescendents(java.util.ArrayList, weka.classifiers.trees.j48.C45PruneableClassifierTreeG)"><!-- --></A><H3>
setDescendents</H3>
<PRE>
public void <B>setDescendents</B>(java.util.ArrayList&nbsp;t,
                           <A HREF="../../../../weka/classifiers/trees/j48/C45PruneableClassifierTreeG.html" title="class in weka.classifiers.trees.j48">C45PruneableClassifierTreeG</A>&nbsp;originalLeaf)</PRE>
<DL>
<DD>add the grafted nodes at originalLeaf's position in tree.
 a recursive function that terminates when t is empty.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>t</CODE> - the list of nodes to graft<DD><CODE>originalLeaf</CODE> - the leaf that the grafts are replacing</DL>
</DD>
</DL>
<HR>

<A NAME="biprob(double, double, double)"><!-- --></A><H3>
biprob</H3>
<PRE>
public double <B>biprob</B>(double&nbsp;x,
                     double&nbsp;n,
                     double&nbsp;r)
              throws java.lang.Exception</PRE>
<DL>
<DD>Significance test
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>double</CODE> - x, double  n, double r.
<DT><B>Returns:</B><DD>returns the probability of obtaining x or MORE out of n
 if r proportion of n are positive.

 z for normal estimation of binomial probability of obtaining x 
 or more out of n, if r proportion of n are positive
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></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.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierTree.html#toString()">toString</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierTree.html" title="class in weka.classifiers.trees.j48">ClassifierTree</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the tree structure</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><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierTree.html#getRevision()">getRevision</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/trees/j48/ClassifierTree.html" title="class in weka.classifiers.trees.j48">ClassifierTree</A></CODE></DL>
</DD>
<DD><DL>

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