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weka是机器学习和数据挖掘领域最有影响力的开源项目之一

setDebug</H3>
<PRE>
public void <B>setDebug</B>(boolean&nbsp;d)</PRE>
<DL>
<DD>Sets whether debug information is output to the console
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../weka/classifiers/Classifier.html#setDebug(boolean)">setDebug</A></CODE> in class <CODE><A HREF="../../../weka/classifiers/Classifier.html" title="class in weka.classifiers">Classifier</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>d</CODE> - whether debug information is output to the console</DL>
</DD>
</DL>
<HR>

<A NAME="getDebug()"><!-- --></A><H3>
getDebug</H3>
<PRE>
public boolean <B>getDebug</B>()</PRE>
<DL>
<DD>Gets whether debug information is output to the console
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../weka/classifiers/Classifier.html#getDebug()">getDebug</A></CODE> in class <CODE><A HREF="../../../weka/classifiers/Classifier.html" title="class in weka.classifiers">Classifier</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>whether debug information is output to the console</DL>
</DD>
</DL>
<HR>

<A NAME="checkErrorRateTipText()"><!-- --></A><H3>
checkErrorRateTipText</H3>
<PRE>
public java.lang.String <B>checkErrorRateTipText</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="setCheckErrorRate(boolean)"><!-- --></A><H3>
setCheckErrorRate</H3>
<PRE>
public void <B>setCheckErrorRate</B>(boolean&nbsp;d)</PRE>
<DL>
<DD>Sets whether to check for error rate is in stopping criterion
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>d</CODE> - whether to check for error rate is in stopping criterion</DL>
</DD>
</DL>
<HR>

<A NAME="getCheckErrorRate()"><!-- --></A><H3>
getCheckErrorRate</H3>
<PRE>
public boolean <B>getCheckErrorRate</B>()</PRE>
<DL>
<DD>Gets whether to check for error rate is in stopping criterion
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>true if checking for error rate is in stopping criterion</DL>
</DD>
</DL>
<HR>

<A NAME="usePruningTipText()"><!-- --></A><H3>
usePruningTipText</H3>
<PRE>
public java.lang.String <B>usePruningTipText</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="setUsePruning(boolean)"><!-- --></A><H3>
setUsePruning</H3>
<PRE>
public void <B>setUsePruning</B>(boolean&nbsp;d)</PRE>
<DL>
<DD>Sets whether pruning is performed
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>d</CODE> - Whether pruning is performed</DL>
</DD>
</DL>
<HR>

<A NAME="getUsePruning()"><!-- --></A><H3>
getUsePruning</H3>
<PRE>
public boolean <B>getUsePruning</B>()</PRE>
<DL>
<DD>Gets whether pruning is performed
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>true if pruning is performed</DL>
</DD>
</DL>
<HR>

<A NAME="getRuleset()"><!-- --></A><H3>
getRuleset</H3>
<PRE>
public <A HREF="../../../weka/core/FastVector.html" title="class in weka.core">FastVector</A> <B>getRuleset</B>()</PRE>
<DL>
<DD>Get the ruleset generated by Ripper
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

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

<A NAME="getRuleStats(int)"><!-- --></A><H3>
getRuleStats</H3>
<PRE>
public <A HREF="../../../weka/classifiers/rules/RuleStats.html" title="class in weka.classifiers.rules">RuleStats</A> <B>getRuleStats</B>(int&nbsp;pos)</PRE>
<DL>
<DD>Get the statistics of the ruleset in the given position
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pos</CODE> - the position of the stats, assuming correct
<DT><B>Returns:</B><DD>the statistics of the ruleset in the given position</DL>
</DD>
</DL>
<HR>

<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.
<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/Classifier.html#getCapabilities()">getCapabilities</A></CODE> in class <CODE><A HREF="../../../weka/classifiers/Classifier.html" title="class in weka.classifiers">Classifier</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the capabilities of this classifier<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;instances)
                     throws java.lang.Exception</PRE>
<DL>
<DD>Builds Ripper in the order of class frequencies.  For each class
 it's built in two stages: building and optimization
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/classifiers/Classifier.html#buildClassifier(weka.core.Instances)">buildClassifier</A></CODE> in class <CODE><A HREF="../../../weka/classifiers/Classifier.html" title="class in weka.classifiers">Classifier</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instances</CODE> - the training data
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if classifier can't be built successfully</DL>
</DD>
</DL>
<HR>

<A NAME="distributionForInstance(weka.core.Instance)"><!-- --></A><H3>
distributionForInstance</H3>
<PRE>
public double[] <B>distributionForInstance</B>(<A HREF="../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;datum)</PRE>
<DL>
<DD>Classify the test instance with the rule learner and provide
 the class distributions
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../weka/classifiers/Classifier.html#distributionForInstance(weka.core.Instance)">distributionForInstance</A></CODE> in class <CODE><A HREF="../../../weka/classifiers/Classifier.html" title="class in weka.classifiers">Classifier</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>datum</CODE> - the instance to be classified
<DT><B>Returns:</B><DD>the distribution</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Prints the all the rules of the rule learner.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a textual description of the classifier</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>Main method.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>args</CODE> - the options for the classifier</DL>
</DD>
</DL>
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