csvresultlistener.html

< 数据挖掘--实用机器学习技术及java实现> 一书结合数据挖掘和机器学习的知识,作者陈述了自动挖掘模式的基础理论,并且以java语言实现了具有代表性的各类数据挖掘方法.例如:class

<PRE>
protected java.io.File <B>m_OutputFile</B></PRE>
<DL>
<DD>The destination output file, null sends to System.out</DL>
<HR>

<A NAME="m_Out"><!-- --></A><H3>
m_Out</H3>
<PRE>
protected transient java.io.PrintWriter <B>m_Out</B></PRE>
<DL>
<DD>The destination for results (typically connected to the output file)</DL>

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<B>Constructor Detail</B></FONT></TD>
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<A NAME="CSVResultListener()"><!-- --></A><H3>
CSVResultListener</H3>
<PRE>
public <B>CSVResultListener</B>()</PRE>
<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 this result listener<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a description of the result listener 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.<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">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>

 -O filename <br>
 The filename where output will be stored. Use - for stdout.
 (default stdout)<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">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 Classifier.<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">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="outputFileTipText()"><!-- --></A><H3>
outputFileTipText</H3>
<PRE>
public java.lang.String <B>outputFileTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property<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="getOutputFile()"><!-- --></A><H3>
getOutputFile</H3>
<PRE>
public java.io.File <B>getOutputFile</B>()</PRE>
<DL>
<DD>Get the value of OutputFile.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Value of OutputFile.</DL>
</DD>
</DL>
<HR>

<A NAME="setOutputFile(java.io.File)"><!-- --></A><H3>
setOutputFile</H3>
<PRE>
public void <B>setOutputFile</B>(java.io.File&nbsp;newOutputFile)</PRE>
<DL>
<DD>Set the value of OutputFile.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newOutputFile</CODE> - Value to assign to OutputFile.</DL>
</DD>
</DL>
<HR>

<A NAME="preProcess(weka.experiment.ResultProducer)"><!-- --></A><H3>
preProcess</H3>
<PRE>
public void <B>preProcess</B>(<A HREF="../../weka/experiment/ResultProducer.html">ResultProducer</A>&nbsp;rp)
                throws java.lang.Exception</PRE>
<DL>
<DD>Prepare for the results to be received.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/experiment/ResultListener.html#preProcess(weka.experiment.ResultProducer)">preProcess</A></CODE> in interface <CODE><A HREF="../../weka/experiment/ResultListener.html">ResultListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rp</CODE> - the ResultProducer that will generate the results<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if an error occurs during preprocessing.</DL>
</DD>
</DL>
<HR>

<A NAME="postProcess(weka.experiment.ResultProducer)"><!-- --></A><H3>
postProcess</H3>
<PRE>
public void <B>postProcess</B>(<A HREF="../../weka/experiment/ResultProducer.html">ResultProducer</A>&nbsp;rp)
                 throws java.lang.Exception</PRE>
<DL>
<DD>Perform any postprocessing. When this method is called, it indicates
 that no more results will be sent that need to be grouped together
 in any way.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/experiment/ResultListener.html#postProcess(weka.experiment.ResultProducer)">postProcess</A></CODE> in interface <CODE><A HREF="../../weka/experiment/ResultListener.html">ResultListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rp</CODE> - the ResultProducer that generated the results<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if an error occurs</DL>
</DD>
</DL>
<HR>

<A NAME="determineColumnConstraints(weka.experiment.ResultProducer)"><!-- --></A><H3>
determineColumnConstraints</H3>
<PRE>
public java.lang.String[] <B>determineColumnConstraints</B>(<A HREF="../../weka/experiment/ResultProducer.html">ResultProducer</A>&nbsp;rp)
                                              throws java.lang.Exception</PRE>
<DL>
<DD>Determines if there are any constraints (imposed by the
 destination) on the result columns to be produced by
 resultProducers. Null should be returned if there are NO
 constraints, otherwise a list of column names should be
 returned as an array of Strings.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/experiment/ResultListener.html#determineColumnConstraints(weka.experiment.ResultProducer)">determineColumnConstraints</A></CODE> in interface <CODE><A HREF="../../weka/experiment/ResultListener.html">ResultListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rp</CODE> - the ResultProducer to which the constraints will apply<DT><B>Returns:</B><DD>an array of column names to which resutltProducer's
 results will be restricted.<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if an error occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="acceptResult(weka.experiment.ResultProducer, java.lang.Object[], java.lang.Object[])"><!-- --></A><H3>
acceptResult</H3>
<PRE>
public void <B>acceptResult</B>(<A HREF="../../weka/experiment/ResultProducer.html">ResultProducer</A>&nbsp;rp,
                         java.lang.Object[]&nbsp;key,
                         java.lang.Object[]&nbsp;result)
                  throws java.lang.Exception</PRE>
<DL>
<DD>Just prints out each result as it is received.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/experiment/ResultListener.html#acceptResult(weka.experiment.ResultProducer, java.lang.Object[], java.lang.Object[])">acceptResult</A></CODE> in interface <CODE><A HREF="../../weka/experiment/ResultListener.html">ResultListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rp</CODE> - the ResultProducer that generated the result<DD><CODE>key</CODE> - The key for the results.<DD><CODE>result</CODE> - The actual results.<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if the result could not be accepted.</DL>
</DD>
</DL>
<HR>

<A NAME="isResultRequired(weka.experiment.ResultProducer, java.lang.Object[])"><!-- --></A><H3>
isResultRequired</H3>
<PRE>
public boolean <B>isResultRequired</B>(<A HREF="../../weka/experiment/ResultProducer.html">ResultProducer</A>&nbsp;rp,
                                java.lang.Object[]&nbsp;key)
                         throws java.lang.Exception</PRE>
<DL>
<DD>Always says a result is required. If this is the first call,
 prints out the header for the csv output.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/experiment/ResultListener.html#isResultRequired(weka.experiment.ResultProducer, java.lang.Object[])">isResultRequired</A></CODE> in interface <CODE><A HREF="../../weka/experiment/ResultListener.html">ResultListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rp</CODE> - the ResultProducer wanting to generate the result<DD><CODE>key</CODE> - The key for which a result may be needed.<DT><B>Returns:</B><DD>true if the result should be calculated.<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if it could not be determined if the result 
 is needed.</DL>
</DD>
</DL>
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