simplekmeans.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

<DD><CODE>java.lang.Exception</CODE> - if number of clusters is negative</DL>
</DD>
</DL>
<HR>

<A NAME="getNumClusters()"><!-- --></A><H3>
getNumClusters</H3>
<PRE>
public int <B>getNumClusters</B>()</PRE>
<DL>
<DD>gets the number of clusters to generate
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of clusters to generate</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. <p/>
 
   <!-- options-start -->
 Valid options are: <p/>
 
 <pre> -N &lt;num&gt;
  number of clusters.
  (default 2).</pre>
 
 <pre> -S &lt;num&gt;
  Random number seed.
  (default 10)</pre>
 
   <!-- options-end -->
<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><DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/clusterers/RandomizableClusterer.html#setOptions(java.lang.String[])">setOptions</A></CODE> in class <CODE><A HREF="../../weka/clusterers/RandomizableClusterer.html" title="class in weka.clusterers">RandomizableClusterer</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 SimpleKMeans
<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><DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/clusterers/RandomizableClusterer.html#getOptions()">getOptions</A></CODE> in class <CODE><A HREF="../../weka/clusterers/RandomizableClusterer.html" title="class in weka.clusterers">RandomizableClusterer</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="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>return a string describing this clusterer
<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 the clusterer as a string</DL>
</DD>
</DL>
<HR>

<A NAME="getClusterCentroids()"><!-- --></A><H3>
getClusterCentroids</H3>
<PRE>
public <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>getClusterCentroids</B>()</PRE>
<DL>
<DD>Gets the the cluster centroids
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the cluster centroids</DL>
</DD>
</DL>
<HR>

<A NAME="getClusterStandardDevs()"><!-- --></A><H3>
getClusterStandardDevs</H3>
<PRE>
public <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>getClusterStandardDevs</B>()</PRE>
<DL>
<DD>Gets the standard deviations of the numeric attributes in each cluster
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the standard deviations of the numeric attributes 
                        in each cluster</DL>
</DD>
</DL>
<HR>

<A NAME="getClusterNominalCounts()"><!-- --></A><H3>
getClusterNominalCounts</H3>
<PRE>
public int[][][] <B>getClusterNominalCounts</B>()</PRE>
<DL>
<DD>Returns for each cluster the frequency counts for the values of each 
 nominal attribute
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

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

<A NAME="getSquaredError()"><!-- --></A><H3>
getSquaredError</H3>
<PRE>
public double <B>getSquaredError</B>()</PRE>
<DL>
<DD>Gets the squared error for all clusters
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the squared error</DL>
</DD>
</DL>
<HR>

<A NAME="getClusterSizes()"><!-- --></A><H3>
getClusterSizes</H3>
<PRE>
public int[] <B>getClusterSizes</B>()</PRE>
<DL>
<DD>Gets the number of instances in each cluster
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The number of instances in each cluster</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> - should contain the following arguments: <p>
 -t training file [-N number of clusters]</DL>
</DD>
</DL>
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