rbfkernel.html

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<A NAME="RBFKernel()"><!-- --></A><H3>
RBFKernel</H3>
<PRE>
public <B>RBFKernel</B>()</PRE>
<DL>
<DD>default constructor - does nothing.
<P>
</DL>
<HR>

<A NAME="RBFKernel(weka.core.Instances, int, double)"><!-- --></A><H3>
RBFKernel</H3>
<PRE>
public <B>RBFKernel</B>(<A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data,
                 int&nbsp;cacheSize,
                 double&nbsp;gamma)
          throws java.lang.Exception</PRE>
<DL>
<DD>Constructor. Initializes m_kernelPrecalc[].
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - the data to use<DD><CODE>cacheSize</CODE> - the size of the cache<DD><CODE>gamma</CODE> - the bandwidth
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DL>

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<A NAME="globalInfo()"><!-- --></A><H3>
globalInfo</H3>
<PRE>
public java.lang.String <B>globalInfo</B>()</PRE>
<DL>
<DD>Returns a string describing the kernel
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/classifiers/functions/supportVector/Kernel.html#globalInfo()">globalInfo</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/functions/supportVector/Kernel.html" title="class in weka.classifiers.functions.supportVector">Kernel</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a description suitable for displaying in the
         explorer/experimenter gui</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><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../weka/classifiers/functions/supportVector/CachedKernel.html#listOptions()">listOptions</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/functions/supportVector/CachedKernel.html" title="class in weka.classifiers.functions.supportVector">CachedKernel</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. <p/>
 
   <!-- options-start -->
 Valid options are: <p/>
 
 <pre> -D
  Enables debugging output (if available) to be printed.
  (default: off)</pre>
 
 <pre> -no-checks
  Turns off all checks - use with caution!
  (default: checks on)</pre>
 
 <pre> -C &lt;num&gt;
  The size of the cache (a prime number).
  (default: 250007)</pre>
 
 <pre> -G &lt;num&gt;
  The Gamma parameter.
  (default: 0.01)</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/classifiers/functions/supportVector/CachedKernel.html#setOptions(java.lang.String[])">setOptions</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/functions/supportVector/CachedKernel.html" title="class in weka.classifiers.functions.supportVector">CachedKernel</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 Kernel.
<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/classifiers/functions/supportVector/CachedKernel.html#getOptions()">getOptions</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/functions/supportVector/CachedKernel.html" title="class in weka.classifiers.functions.supportVector">CachedKernel</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="setGamma(double)"><!-- --></A><H3>
setGamma</H3>
<PRE>
public void <B>setGamma</B>(double&nbsp;value)</PRE>
<DL>
<DD>Sets the gamma value.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the gamma value</DL>
</DD>
</DL>
<HR>

<A NAME="getGamma()"><!-- --></A><H3>
getGamma</H3>
<PRE>
public double <B>getGamma</B>()</PRE>
<DL>
<DD>Gets the gamma value.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the gamma value</DL>
</DD>
</DL>
<HR>

<A NAME="gammaTipText()"><!-- --></A><H3>
gammaTipText</H3>
<PRE>
public java.lang.String <B>gammaTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property
<P>
<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="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 kernel.
<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/functions/supportVector/Kernel.html#getCapabilities()">getCapabilities</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/functions/supportVector/Kernel.html" title="class in weka.classifiers.functions.supportVector">Kernel</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the capabilities of this object<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="buildKernel(weka.core.Instances)"><!-- --></A><H3>
buildKernel</H3>
<PRE>
public void <B>buildKernel</B>(<A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data)
                 throws java.lang.Exception</PRE>
<DL>
<DD>builds the kernel with the given data. Initializes the kernel cache. 
 The actual size of the cache in bytes is (64 * cacheSize).
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../weka/classifiers/functions/supportVector/CachedKernel.html#buildKernel(weka.core.Instances)">buildKernel</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/functions/supportVector/CachedKernel.html" title="class in weka.classifiers.functions.supportVector">CachedKernel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - the data to base the kernel on
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</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 representation for the Kernel
<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 string representaiton of the kernel</DL>
</DD>
</DL>
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