bayesnetgenerator.html

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<TD><CODE><A HREF="../../../../weka/classifiers/Classifier.html#classifyInstance(weka.core.Instance)">classifyInstance</A>, <A HREF="../../../../weka/classifiers/Classifier.html#debugTipText()">debugTipText</A>, <A HREF="../../../../weka/classifiers/Classifier.html#forName(java.lang.String, java.lang.String[])">forName</A>, <A HREF="../../../../weka/classifiers/Classifier.html#getDebug()">getDebug</A>, <A HREF="../../../../weka/classifiers/Classifier.html#makeCopies(weka.classifiers.Classifier, int)">makeCopies</A>, <A HREF="../../../../weka/classifiers/Classifier.html#makeCopy(weka.classifiers.Classifier)">makeCopy</A>, <A HREF="../../../../weka/classifiers/Classifier.html#setDebug(boolean)">setDebug</A></CODE></TD>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
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<TD><CODE>equals, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD>
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<A NAME="BayesNetGenerator()"><!-- --></A><H3>
BayesNetGenerator</H3>
<PRE>
public <B>BayesNetGenerator</B>()</PRE>
<DL>
<DD>Constructor for BayesNetGenerator.
<P>
</DL>

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<A NAME="generateRandomNetwork()"><!-- --></A><H3>
generateRandomNetwork</H3>
<PRE>
public void <B>generateRandomNetwork</B>()
                           throws java.lang.Exception</PRE>
<DL>
<DD>Generate random connected Bayesian network with discrete nodes
 having all the same cardinality.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="Init(int, int)"><!-- --></A><H3>
Init</H3>
<PRE>
public void <B>Init</B>(int&nbsp;nNodes,
                 int&nbsp;nValues)
          throws java.lang.Exception</PRE>
<DL>
<DD>Init defines a minimal Bayes net with no arcs
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>nNodes</CODE> - number of nodes in the Bayes net<DD><CODE>nValues</CODE> - number of values each of the nodes can take
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="generateRandomNetworkStructure(int, int)"><!-- --></A><H3>
generateRandomNetworkStructure</H3>
<PRE>
public void <B>generateRandomNetworkStructure</B>(int&nbsp;nNodes,
                                           int&nbsp;nArcs)
                                    throws java.lang.Exception</PRE>
<DL>
<DD>GenerateRandomNetworkStructure generate random connected Bayesian network
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>nNodes</CODE> - number of nodes in the Bayes net to generate<DD><CODE>nArcs</CODE> - number of arcs to generate. Must be between nNodes - 1 and nNodes * (nNodes-1) / 2
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if number of arcs is incorrect</DL>
</DD>
</DL>
<HR>

<A NAME="generateInstances()"><!-- --></A><H3>
generateInstances</H3>
<PRE>
public void <B>generateInstances</B>()
                       throws java.lang.Exception</PRE>
<DL>
<DD>GenerateInstances generates random instances sampling from the
 distribution represented by the Bayes network structure. It assumes
 a Bayes network structure has been initialized
<P>
<DD><DL>

<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 either the net (if BIF format) or the generated instances
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../weka/classifiers/bayes/BayesNet.html#toString()">toString</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/bayes/BayesNet.html" title="class in weka.classifiers.bayes">BayesNet</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>either the net or the generated instances</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/bayes/BayesNet.html#listOptions()">listOptions</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/bayes/BayesNet.html" title="class in weka.classifiers.bayes">BayesNet</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> -B
  Generate network (instead of instances)
 </pre>
 
 <pre> -N &lt;integer&gt;
  Nr of nodes
 </pre>
 
 <pre> -A &lt;integer&gt;
  Nr of arcs
 </pre>
 
 <pre> -M &lt;integer&gt;
  Nr of instances
 </pre>
 
 <pre> -C &lt;integer&gt;
  Cardinality of the variables
 </pre>
 
 <pre> -S &lt;integer&gt;
  Seed for random number generator
 </pre>
 
 <pre> -F &lt;file&gt;
  The BIF file to obtain the structure from.
 </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/bayes/BayesNet.html#setOptions(java.lang.String[])">setOptions</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/bayes/BayesNet.html" title="class in weka.classifiers.bayes">BayesNet</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 classifier.
<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/bayes/BayesNet.html#getOptions()">getOptions</A></CODE> in class <CODE><A HREF="../../../../weka/classifiers/bayes/BayesNet.html" title="class in weka.classifiers.bayes">BayesNet</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;args)</PRE>
<DL>
<DD>Main method
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>args</CODE> - the commandline parameters</DL>
</DD>
</DL>
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