agrawal.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

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<DT><B>Parameters:</B><DD><CODE>value</CODE> - whether to balance the class.</DL>
</DD>
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<A NAME="balanceClassTipText()"><!-- --></A><H3>
balanceClassTipText</H3>
<PRE>
public java.lang.String <B>balanceClassTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property
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<DT><B>Returns:</B><DD>tip text for this property suitable for
         displaying in the explorer/experimenter gui</DL>
</DD>
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<A NAME="getPerturbationFraction()"><!-- --></A><H3>
getPerturbationFraction</H3>
<PRE>
public double <B>getPerturbationFraction</B>()</PRE>
<DL>
<DD>Gets the perturbation fraction.
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<DD><DL>
</DL>
</DD>
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<DT><B>Returns:</B><DD>the perturbation fraction.</DL>
</DD>
</DL>
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<A NAME="setPerturbationFraction(double)"><!-- --></A><H3>
setPerturbationFraction</H3>
<PRE>
public void <B>setPerturbationFraction</B>(double&nbsp;value)</PRE>
<DL>
<DD>Sets the perturbation fraction.
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<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the perturbation fraction.</DL>
</DD>
</DL>
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<A NAME="perturbationFractionTipText()"><!-- --></A><H3>
perturbationFractionTipText</H3>
<PRE>
public java.lang.String <B>perturbationFractionTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property
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<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>
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<A NAME="getSingleModeFlag()"><!-- --></A><H3>
getSingleModeFlag</H3>
<PRE>
public boolean <B>getSingleModeFlag</B>()
                          throws java.lang.Exception</PRE>
<DL>
<DD>Return if single mode is set for the given data generator
 mode depends on option setting and or generator type.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html#getSingleModeFlag()">getSingleModeFlag</A></CODE> in class <CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html" title="class in weka.datagenerators">DataGenerator</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>single mode flag
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if mode is not set yet</DL>
</DD>
</DL>
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<A NAME="defineDataFormat()"><!-- --></A><H3>
defineDataFormat</H3>
<PRE>
public <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>defineDataFormat</B>()
                           throws java.lang.Exception</PRE>
<DL>
<DD>Initializes the format for the dataset produced. 
 Must be called before the generateExample or generateExamples
 methods are used.
 Re-initializes the random number generator with the given seed.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html#defineDataFormat()">defineDataFormat</A></CODE> in class <CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html" title="class in weka.datagenerators">DataGenerator</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the format for the dataset
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the generating of the format failed<DT><B>See Also:</B><DD><A HREF="../../../../weka/datagenerators/DataGenerator.html#getSeed()"><CODE>DataGenerator.getSeed()</CODE></A></DL>
</DD>
</DL>
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<A NAME="generateExample()"><!-- --></A><H3>
generateExample</H3>
<PRE>
public <A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A> <B>generateExample</B>()
                         throws java.lang.Exception</PRE>
<DL>
<DD>Generates one example of the dataset.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html#generateExample()">generateExample</A></CODE> in class <CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html" title="class in weka.datagenerators">DataGenerator</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the generated example
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the format of the dataset is not yet defined
<DD><CODE>java.lang.Exception</CODE> - if the generator only works with generateExamples
 which means in non single mode</DL>
</DD>
</DL>
<HR>

<A NAME="generateExamples()"><!-- --></A><H3>
generateExamples</H3>
<PRE>
public <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>generateExamples</B>()
                           throws java.lang.Exception</PRE>
<DL>
<DD>Generates all examples of the dataset. Re-initializes the random number
 generator with the given seed, before generating instances.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html#generateExamples()">generateExamples</A></CODE> in class <CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html" title="class in weka.datagenerators">DataGenerator</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the generated dataset
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the format of the dataset is not yet defined
<DD><CODE>java.lang.Exception</CODE> - if the generator only works with generateExample,
 which means in single mode<DT><B>See Also:</B><DD><A HREF="../../../../weka/datagenerators/DataGenerator.html#getSeed()"><CODE>DataGenerator.getSeed()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="generateStart()"><!-- --></A><H3>
generateStart</H3>
<PRE>
public java.lang.String <B>generateStart</B>()</PRE>
<DL>
<DD>Generates a comment string that documentates the data generator.
 By default this string is added at the beginning of the produced output
 as ARFF file type, next after the options.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html#generateStart()">generateStart</A></CODE> in class <CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html" title="class in weka.datagenerators">DataGenerator</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>string contains info about the generated rules</DL>
</DD>
</DL>
<HR>

<A NAME="generateFinished()"><!-- --></A><H3>
generateFinished</H3>
<PRE>
public java.lang.String <B>generateFinished</B>()
                                  throws java.lang.Exception</PRE>
<DL>
<DD>Generates a comment string that documentats the data generator.
 By default this string is added at the end of theproduces output
 as ARFF file type.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html#generateFinished()">generateFinished</A></CODE> in class <CODE><A HREF="../../../../weka/datagenerators/DataGenerator.html" title="class in weka.datagenerators">DataGenerator</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>string contains info about the generated rules
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the generating of the documentaion fails</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 for executing this class.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>args</CODE> - should contain arguments for the data producer:</DL>
</DD>
</DL>
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