makedensitybasedclusterer.html

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<A NAME="setNumClusters(int)"><!-- --></A><H3>
setNumClusters</H3>
<PRE>
public void <B>setNumClusters</B>(int&nbsp;n)
                    throws java.lang.Exception</PRE>
<DL>
<DD>Set the number of clusters to generate.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/clusterers/NumberOfClustersRequestable.html#setNumClusters(int)">setNumClusters</A></CODE> in interface <CODE><A HREF="../../weka/clusterers/NumberOfClustersRequestable.html" title="interface in weka.clusterers">NumberOfClustersRequestable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>n</CODE> - the number of clusters to generate
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the wrapped clusterer has not been set, or if
 the wrapped clusterer does not implement this facility.</DL>
</DD>
</DL>
<HR>

<A NAME="buildClusterer(weka.core.Instances)"><!-- --></A><H3>
buildClusterer</H3>
<PRE>
public void <B>buildClusterer</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data)
                    throws java.lang.Exception</PRE>
<DL>
<DD>Builds a clusterer for a set of instances.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/clusterers/Clusterer.html#buildClusterer(weka.core.Instances)">buildClusterer</A></CODE> in class <CODE><A HREF="../../weka/clusterers/Clusterer.html" title="class in weka.clusterers">Clusterer</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 clusterer hasn't been set or something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="clusterPriors()"><!-- --></A><H3>
clusterPriors</H3>
<PRE>
public double[] <B>clusterPriors</B>()</PRE>
<DL>
<DD>Returns the cluster priors.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/clusterers/DensityBasedClusterer.html#clusterPriors()">clusterPriors</A></CODE> in class <CODE><A HREF="../../weka/clusterers/DensityBasedClusterer.html" title="class in weka.clusterers">DensityBasedClusterer</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the prior probability for each cluster</DL>
</DD>
</DL>
<HR>

<A NAME="logDensityPerClusterForInstance(weka.core.Instance)"><!-- --></A><H3>
logDensityPerClusterForInstance</H3>
<PRE>
public double[] <B>logDensityPerClusterForInstance</B>(<A HREF="../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;inst)
                                         throws java.lang.Exception</PRE>
<DL>
<DD>Computes the log of the conditional density (per cluster) for a given instance.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/clusterers/DensityBasedClusterer.html#logDensityPerClusterForInstance(weka.core.Instance)">logDensityPerClusterForInstance</A></CODE> in class <CODE><A HREF="../../weka/clusterers/DensityBasedClusterer.html" title="class in weka.clusterers">DensityBasedClusterer</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>inst</CODE> - the instance to compute the density for
<DT><B>Returns:</B><DD>the density.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the density could not be computed
 successfully</DL>
</DD>
</DL>
<HR>

<A NAME="numberOfClusters()"><!-- --></A><H3>
numberOfClusters</H3>
<PRE>
public int <B>numberOfClusters</B>()
                     throws java.lang.Exception</PRE>
<DL>
<DD>Returns the number of clusters.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/clusterers/Clusterer.html#numberOfClusters()">numberOfClusters</A></CODE> in class <CODE><A HREF="../../weka/clusterers/Clusterer.html" title="class in weka.clusterers">Clusterer</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of clusters generated for a training dataset.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if number of clusters could not be returned 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 the clusterer.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a string containing a description of the clusterer</DL>
</DD>
</DL>
<HR>

<A NAME="setClusterer(weka.clusterers.Clusterer)"><!-- --></A><H3>
setClusterer</H3>
<PRE>
public void <B>setClusterer</B>(<A HREF="../../weka/clusterers/Clusterer.html" title="class in weka.clusterers">Clusterer</A>&nbsp;toWrap)</PRE>
<DL>
<DD>Sets the clusterer to wrap.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>toWrap</CODE> - the clusterer</DL>
</DD>
</DL>
<HR>

<A NAME="getClusterer()"><!-- --></A><H3>
getClusterer</H3>
<PRE>
public <A HREF="../../weka/clusterers/Clusterer.html" title="class in weka.clusterers">Clusterer</A> <B>getClusterer</B>()</PRE>
<DL>
<DD>Gets the clusterer being wrapped.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

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

<A NAME="minStdDevTipText()"><!-- --></A><H3>
minStdDevTipText</H3>
<PRE>
public java.lang.String <B>minStdDevTipText</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="setMinStdDev(double)"><!-- --></A><H3>
setMinStdDev</H3>
<PRE>
public void <B>setMinStdDev</B>(double&nbsp;m)</PRE>
<DL>
<DD>Set the minimum value for standard deviation when calculating
 normal density. Reducing this value can help prevent arithmetic
 overflow resulting from multiplying large densities (arising from small
 standard deviations) when there are many singleton or near singleton
 values.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>m</CODE> - minimum value for standard deviation</DL>
</DD>
</DL>
<HR>

<A NAME="getMinStdDev()"><!-- --></A><H3>
getMinStdDev</H3>
<PRE>
public double <B>getMinStdDev</B>()</PRE>
<DL>
<DD>Get the minimum allowable standard deviation.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the minumum allowable standard deviation</DL>
</DD>
</DL>
<HR>

<A NAME="listOptions()"><!-- --></A><H3>
listOptions</H3>
<PRE>
public java.util.Enumeration <B>listOptions</B>()</PRE>
<DL>
<DD>Returns an enumeration describing the available options..
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/core/OptionHandler.html#listOptions()">listOptions</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 enumeration of all the available options.</DL>
</DD>
</DL>
<HR>

<A NAME="setOptions(java.lang.String[])"><!-- --></A><H3>
setOptions</H3>
<PRE>
public void <B>setOptions</B>(java.lang.String[]&nbsp;options)
                throws java.lang.Exception</PRE>
<DL>
<DD>Parses a given list of options. Valid options are:<p>

 -W clusterer name <br>
 Clusterer to wrap. (required) <p>

 -M <num> <br>
  Set the minimum allowable standard deviation for normal density 
 calculation. <p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/core/OptionHandler.html#setOptions(java.lang.String[])">setOptions</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>Parameters:</B><DD><CODE>options</CODE> - the list of options as an array of strings
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if an option is not supported</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 the clusterer.
<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="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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