lwl.html

数据挖掘的最常用工具。由于开源

</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>knn</CODE> - the number of neighbours included inside the kernel
 bandwidth, or 0 to specify using all neighbors.</DL>
</DD>
</DL>
<HR>

<A NAME="getKNN()"><!-- --></A><H3>
getKNN</H3>
<PRE>
public int <B>getKNN</B>()</PRE>
<DL>
<DD>Gets the number of neighbours used for kernel bandwidth setting.
 The bandwidth is taken as the distance to the kth neighbour.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of neighbours included inside the kernel
 bandwidth, or 0 for all neighbours</DL>
</DD>
</DL>
<HR>

<A NAME="weightingKernelTipText()"><!-- --></A><H3>
weightingKernelTipText</H3>
<PRE>
public java.lang.String <B>weightingKernelTipText</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="setWeightingKernel(int)"><!-- --></A><H3>
setWeightingKernel</H3>
<PRE>
public void <B>setWeightingKernel</B>(int&nbsp;kernel)</PRE>
<DL>
<DD>Sets the kernel weighting method to use. Must be one of LINEAR, 
 EPANECHNIKOV,  TRICUBE, INVERSE, GAUSS or CONSTANT, other values
 are ignored.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>kernel</CODE> - the new kernel method to use. Must be one of LINEAR,
 EPANECHNIKOV,  TRICUBE, INVERSE, GAUSS or CONSTANT.</DL>
</DD>
</DL>
<HR>

<A NAME="getWeightingKernel()"><!-- --></A><H3>
getWeightingKernel</H3>
<PRE>
public int <B>getWeightingKernel</B>()</PRE>
<DL>
<DD>Gets the kernel weighting method to use.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the new kernel method to use. Will be one of LINEAR,
 EPANECHNIKOV,  TRICUBE, INVERSE, GAUSS or CONSTANT.</DL>
</DD>
</DL>
<HR>

<A NAME="nearestNeighbourSearchAlgorithmTipText()"><!-- --></A><H3>
nearestNeighbourSearchAlgorithmTipText</H3>
<PRE>
public java.lang.String <B>nearestNeighbourSearchAlgorithmTipText</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="getNearestNeighbourSearchAlgorithm()"><!-- --></A><H3>
getNearestNeighbourSearchAlgorithm</H3>
<PRE>
public <A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html" title="class in weka.core.neighboursearch">NearestNeighbourSearch</A> <B>getNearestNeighbourSearchAlgorithm</B>()</PRE>
<DL>
<DD>Returns the current nearestNeighbourSearch algorithm in use.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the NearestNeighbourSearch algorithm currently in use.</DL>
</DD>
</DL>
<HR>

<A NAME="setNearestNeighbourSearchAlgorithm(weka.core.neighboursearch.NearestNeighbourSearch)"><!-- --></A><H3>
setNearestNeighbourSearchAlgorithm</H3>
<PRE>
public void <B>setNearestNeighbourSearchAlgorithm</B>(<A HREF="../../../weka/core/neighboursearch/NearestNeighbourSearch.html" title="class in weka.core.neighboursearch">NearestNeighbourSearch</A>&nbsp;nearestNeighbourSearchAlgorithm)</PRE>
<DL>
<DD>Sets the nearestNeighbourSearch algorithm to be used for finding nearest
 neighbour(s).
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>nearestNeighbourSearchAlgorithm</CODE> - - The NearestNeighbourSearch class.</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/SingleClassifierEnhancer.html#getCapabilities()">getCapabilities</A></CODE> in class <CODE><A HREF="../../../weka/classifiers/SingleClassifierEnhancer.html" title="class in weka.classifiers">SingleClassifierEnhancer</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>Generates the classifier.
<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> - set of instances serving as training data
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the classifier has not been generated successfully</DL>
</DD>
</DL>
<HR>

<A NAME="updateClassifier(weka.core.Instance)"><!-- --></A><H3>
updateClassifier</H3>
<PRE>
public void <B>updateClassifier</B>(<A HREF="../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;instance)
                      throws java.lang.Exception</PRE>
<DL>
<DD>Adds the supplied instance to the training set.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/classifiers/UpdateableClassifier.html#updateClassifier(weka.core.Instance)">updateClassifier</A></CODE> in interface <CODE><A HREF="../../../weka/classifiers/UpdateableClassifier.html" title="interface in weka.classifiers">UpdateableClassifier</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instance</CODE> - the instance to add
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if instance could not be incorporated
 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;instance)
                                 throws java.lang.Exception</PRE>
<DL>
<DD>Calculates the class membership probabilities for the given test instance.
<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>instance</CODE> - the instance to be classified
<DT><B>Returns:</B><DD>preedicted class probability distribution
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if distribution can't be computed successfully</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Returns a description of this classifier.
<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 description of this classifier as a string.</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></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the revision</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;argv)</PRE>
<DL>
<DD>Main method for testing this class.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>argv</CODE> - the options</DL>
</DD>
</DL>
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