asevaluation.html

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

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

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<A NAME="buildEvaluator(weka.core.Instances)"><!-- --></A><H3>
buildEvaluator</H3>
<PRE>
public abstract 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>
</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="postProcess(int[])"><!-- --></A><H3>
postProcess</H3>
<PRE>
public int[] <B>postProcess</B>(int[]&nbsp;attributeSet)
                  throws java.lang.Exception</PRE>
<DL>
<DD>Provides a chance for a attribute evaluator to do any special
 post processing of the selected attribute set.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>attributeSet</CODE> - the set of attributes found by the search
<DT><B>Returns:</B><DD>a possibly ranked list of postprocessed attributes
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if postprocessing fails for some reason</DL>
</DD>
</DL>
<HR>

<A NAME="forName(java.lang.String, java.lang.String[])"><!-- --></A><H3>
forName</H3>
<PRE>
public static <A HREF="../../weka/attributeSelection/ASEvaluation.html" title="class in weka.attributeSelection">ASEvaluation</A> <B>forName</B>(java.lang.String&nbsp;evaluatorName,
                                   java.lang.String[]&nbsp;options)
                            throws java.lang.Exception</PRE>
<DL>
<DD>Creates a new instance of an attribute/subset evaluator 
 given it's class name and
 (optional) arguments to pass to it's setOptions method. If the
 evaluator implements OptionHandler and the options parameter is
 non-null, the evaluator will have it's options set.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>evaluatorName</CODE> - the fully qualified class name of the evaluator<DD><CODE>options</CODE> - an array of options suitable for passing to setOptions. May
 be null.
<DT><B>Returns:</B><DD>the newly created evaluator, ready for use.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the evaluator name is invalid, or the options
 supplied are not acceptable to the evaluator</DL>
</DD>
</DL>
<HR>

<A NAME="makeCopies(weka.attributeSelection.ASEvaluation, int)"><!-- --></A><H3>
makeCopies</H3>
<PRE>
public static <A HREF="../../weka/attributeSelection/ASEvaluation.html" title="class in weka.attributeSelection">ASEvaluation</A>[] <B>makeCopies</B>(<A HREF="../../weka/attributeSelection/ASEvaluation.html" title="class in weka.attributeSelection">ASEvaluation</A>&nbsp;model,
                                        int&nbsp;num)
                                 throws java.lang.Exception</PRE>
<DL>
<DD>Creates copies of the current evaluator. Note that this method
 now uses Serialization to perform a deep copy, so the evaluator
 object must be fully Serializable. Any currently built model will
 now be copied as well.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>model</CODE> - an example evaluator to copy<DD><CODE>num</CODE> - the number of evaluator copies to create.
<DT><B>Returns:</B><DD>an array of evaluators.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if an error occurs</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 the capabilities of this evaluator.
<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></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the capabilities of this evaluator<DT><B>See Also:</B><DD><A HREF="../../weka/core/Capabilities.html" title="class in weka.core"><CODE>Capabilities</CODE></A></DL>
</DD>
</DL>
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