classifiersubseteval.html

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<DD>Set the file that contains hold out/test instances
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>h</CODE> - the hold out file</DL>
</DD>
</DL>
<HR>

<A NAME="useTrainingTipText()"><!-- --></A><H3>
useTrainingTipText</H3>
<PRE>
public java.lang.String <B>useTrainingTipText</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="getUseTraining()"><!-- --></A><H3>
getUseTraining</H3>
<PRE>
public boolean <B>getUseTraining</B>()</PRE>
<DL>
<DD>Get if training data is to be used instead of hold out/test data
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>true if training data is to be used instead of hold out data</DL>
</DD>
</DL>
<HR>

<A NAME="setUseTraining(boolean)"><!-- --></A><H3>
setUseTraining</H3>
<PRE>
public void <B>setUseTraining</B>(boolean&nbsp;t)</PRE>
<DL>
<DD>Set if training data is to be used instead of hold out/test data
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>true if training data is to be used instead of hold out data</DL>
</DD>
</DL>
<HR>

<A NAME="getOptions()"><!-- --></A><H3>
getOptions</H3>
<PRE>
public java.lang.String[] <B>getOptions</B>()</PRE>
<DL>
<DD>Gets the current settings of ClassifierSubsetEval
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/core/OptionHandler.html#getOptions()">getOptions</A></CODE> in interface <CODE><A HREF="../../weka/core/OptionHandler.html" title="interface in weka.core">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>an array of strings suitable for passing to setOptions()</DL>
</DD>
</DL>
<HR>

<A NAME="buildEvaluator(weka.core.Instances)"><!-- --></A><H3>
buildEvaluator</H3>
<PRE>
public void <B>buildEvaluator</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data)
                    throws java.lang.Exception</PRE>
<DL>
<DD>Generates a attribute evaluator. Has to initialize all fields of the 
 evaluator that are not being set via options.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/attributeSelection/ASEvaluation.html#buildEvaluator(weka.core.Instances)">buildEvaluator</A></CODE> in class <CODE><A HREF="../../weka/attributeSelection/ASEvaluation.html" title="class in weka.attributeSelection">ASEvaluation</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - set of instances serving as training data
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the evaluator has not been 
 generated successfully</DL>
</DD>
</DL>
<HR>

<A NAME="evaluateSubset(java.util.BitSet)"><!-- --></A><H3>
evaluateSubset</H3>
<PRE>
public double <B>evaluateSubset</B>(java.util.BitSet&nbsp;subset)
                      throws java.lang.Exception</PRE>
<DL>
<DD>Evaluates a subset of attributes
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/attributeSelection/SubsetEvaluator.html#evaluateSubset(java.util.BitSet)">evaluateSubset</A></CODE> in class <CODE><A HREF="../../weka/attributeSelection/SubsetEvaluator.html" title="class in weka.attributeSelection">SubsetEvaluator</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>subset</CODE> - a bitset representing the attribute subset to be 
 evaluated
<DT><B>Returns:</B><DD>the "merit" of the subset
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the subset could not be evaluated</DL>
</DD>
</DL>
<HR>

<A NAME="evaluateSubset(java.util.BitSet, weka.core.Instances)"><!-- --></A><H3>
evaluateSubset</H3>
<PRE>
public double <B>evaluateSubset</B>(java.util.BitSet&nbsp;subset,
                             <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;holdOut)
                      throws java.lang.Exception</PRE>
<DL>
<DD>Evaluates a subset of attributes with respect to a set of instances.
 Calling this function overides any test/hold out instancs set from
 setHoldOutFile.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/attributeSelection/HoldOutSubsetEvaluator.html#evaluateSubset(java.util.BitSet, weka.core.Instances)">evaluateSubset</A></CODE> in class <CODE><A HREF="../../weka/attributeSelection/HoldOutSubsetEvaluator.html" title="class in weka.attributeSelection">HoldOutSubsetEvaluator</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>subset</CODE> - a bitset representing the attribute subset to be
 evaluated<DD><CODE>holdOut</CODE> - a set of instances (possibly seperate and distinct
 from those use to build/train the evaluator) with which to
 evaluate the merit of the subset
<DT><B>Returns:</B><DD>the "merit" of the subset on the holdOut data
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the subset cannot be evaluated</DL>
</DD>
</DL>
<HR>

<A NAME="evaluateSubset(java.util.BitSet, weka.core.Instance, boolean)"><!-- --></A><H3>
evaluateSubset</H3>
<PRE>
public double <B>evaluateSubset</B>(java.util.BitSet&nbsp;subset,
                             <A HREF="../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;holdOut,
                             boolean&nbsp;retrain)
                      throws java.lang.Exception</PRE>
<DL>
<DD>Evaluates a subset of attributes with respect to a single instance.
 Calling this function overides any hold out/test instances set
 through setHoldOutFile.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/attributeSelection/HoldOutSubsetEvaluator.html#evaluateSubset(java.util.BitSet, weka.core.Instance, boolean)">evaluateSubset</A></CODE> in class <CODE><A HREF="../../weka/attributeSelection/HoldOutSubsetEvaluator.html" title="class in weka.attributeSelection">HoldOutSubsetEvaluator</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>subset</CODE> - a bitset representing the attribute subset to be
 evaluated<DD><CODE>holdOut</CODE> - a single instance (possibly not one of those used to
 build/train the evaluator) with which to evaluate the merit of the subset<DD><CODE>retrain</CODE> - true if the classifier should be retrained with respect
 to the new subset before testing on the holdOut instance.
<DT><B>Returns:</B><DD>the "merit" of the subset on the holdOut instance
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the subset cannot be evaluated</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Returns a string describing classifierSubsetEval
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the description as a string</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 for testing this class.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>args</CODE> - the options</DL>
</DD>
</DL>
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