pairedttester.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

public <A HREF="../../weka/experiment/PairedStats.html">PairedStats</A> <B>calculateStatistics</B>(<A HREF="../../weka/core/Instance.html">Instance</A>&nbsp;datasetSpecifier,
                                       int&nbsp;resultset1Index,
                                       int&nbsp;resultset2Index,
                                       int&nbsp;comparisonColumn)
                                throws java.lang.Exception</PRE>
<DL>
<DD>Computes a paired t-test comparison for a specified dataset between
 two resultsets.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>datasetSpecifier</CODE> - the dataset specifier<DD><CODE>resultset1Index</CODE> - the index of the first resultset<DD><CODE>resultset2Index</CODE> - the index of the second resultset<DD><CODE>comparisonColumn</CODE> - the column containing values to compare<DT><B>Returns:</B><DD>the results of the paired comparison<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if an error occurs</DL>
</DD>
</DL>
<HR>

<A NAME="resultsetKey()"><!-- --></A><H3>
resultsetKey</H3>
<PRE>
public java.lang.String <B>resultsetKey</B>()</PRE>
<DL>
<DD>Creates a key that maps resultset numbers to their descriptions.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a value of type 'String'</DL>
</DD>
</DL>
<HR>

<A NAME="header(int)"><!-- --></A><H3>
header</H3>
<PRE>
public java.lang.String <B>header</B>(int&nbsp;comparisonColumn)</PRE>
<DL>
<DD>Creates a "header" string describing the current resultsets.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>comparisonColumn</CODE> - a value of type 'int'<DT><B>Returns:</B><DD>a value of type 'String'</DL>
</DD>
</DL>
<HR>

<A NAME="multiResultsetWins(int)"><!-- --></A><H3>
multiResultsetWins</H3>
<PRE>
public int[][] <B>multiResultsetWins</B>(int&nbsp;comparisonColumn)
                           throws java.lang.Exception</PRE>
<DL>
<DD>Carries out a comparison between all resultsets, counting the number
 of datsets where one resultset outperforms the other.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>comparisonColumn</CODE> - the index of the comparison column<DT><B>Returns:</B><DD>a 2d array where element [i][j] is the number of times resultset
 j performed significantly better than resultset i.<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if an error occurs</DL>
</DD>
</DL>
<HR>

<A NAME="multiResultsetSummary(int)"><!-- --></A><H3>
multiResultsetSummary</H3>
<PRE>
public java.lang.String <B>multiResultsetSummary</B>(int&nbsp;comparisonColumn)
                                       throws java.lang.Exception</PRE>
<DL>
<DD>Carries out a comparison between all resultsets, counting the number
 of datsets where one resultset outperforms the other. The results
 are summarized in a table.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>comparisonColumn</CODE> - the index of the comparison column<DT><B>Returns:</B><DD>the results in a string<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if an error occurs</DL>
</DD>
</DL>
<HR>

<A NAME="multiResultsetRanking(int)"><!-- --></A><H3>
multiResultsetRanking</H3>
<PRE>
public java.lang.String <B>multiResultsetRanking</B>(int&nbsp;comparisonColumn)
                                       throws java.lang.Exception</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="multiResultsetFull(int, int)"><!-- --></A><H3>
multiResultsetFull</H3>
<PRE>
public java.lang.String <B>multiResultsetFull</B>(int&nbsp;baseResultset,
                                           int&nbsp;comparisonColumn)
                                    throws java.lang.Exception</PRE>
<DL>
<DD>Creates a comparison table where a base resultset is compared to the
 other resultsets. Results are presented for every dataset.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>baseResultset</CODE> - the index of the base resultset<DD><CODE>comparisonColumn</CODE> - the index of the column to compare over<DT><B>Returns:</B><DD>the comparison table string<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if an error occurs</DL>
</DD>
</DL>
<HR>

<A NAME="listOptions()"><!-- --></A><H3>
listOptions</H3>
<PRE>
public java.util.Enumeration <B>listOptions</B>()</PRE>
<DL>
<DD>Lists options understood by this object.<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 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>

 -D num,num2... <br>
 The column numbers that uniquely specify a dataset.
 (default last) <p>

 -R num <br>
 The column number containing the run number.
 (default last) <p>

 -S num <br>
 The significance level for T-Tests.
 (default 0.05) <p>

 -R num,num2... <br>
 The column numbers that uniquely specify one result generator (eg:
 scheme name plus options).
 (default last) <p>

 -V <br>
 Show standard deviations <p>

 -L <br>
 Produce comparison tables in Latex table format <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">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>options</CODE> - an array containing options to set.<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if invalid options are given</DL>
</DD>
</DL>
<HR>

<A NAME="getOptions()"><!-- --></A><H3>
getOptions</H3>
<PRE>
public java.lang.String[] <B>getOptions</B>()</PRE>
<DL>
<DD>Gets current settings of the PairedTTester.<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 containing current options.</DL>
</DD>
</DL>
<HR>

<A NAME="getResultsetKeyColumns()"><!-- --></A><H3>
getResultsetKeyColumns</H3>
<PRE>
public <A HREF="../../weka/core/Range.html">Range</A> <B>getResultsetKeyColumns</B>()</PRE>
<DL>
<DD>Get the value of ResultsetKeyColumns.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Value of ResultsetKeyColumns.</DL>
</DD>
</DL>
<HR>

<A NAME="setResultsetKeyColumns(weka.core.Range)"><!-- --></A><H3>
setResultsetKeyColumns</H3>
<PRE>
public void <B>setResultsetKeyColumns</B>(<A HREF="../../weka/core/Range.html">Range</A>&nbsp;newResultsetKeyColumns)</PRE>
<DL>
<DD>Set the value of ResultsetKeyColumns.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newResultsetKeyColumns</CODE> - Value to assign to ResultsetKeyColumns.</DL>
</DD>
</DL>
<HR>

<A NAME="getSignificanceLevel()"><!-- --></A><H3>
getSignificanceLevel</H3>
<PRE>
public double <B>getSignificanceLevel</B>()</PRE>
<DL>
<DD>Get the value of SignificanceLevel.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Value of SignificanceLevel.</DL>
</DD>
</DL>
<HR>

<A NAME="setSignificanceLevel(double)"><!-- --></A><H3>
setSignificanceLevel</H3>
<PRE>
public void <B>setSignificanceLevel</B>(double&nbsp;newSignificanceLevel)</PRE>
<DL>
<DD>Set the value of SignificanceLevel.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newSignificanceLevel</CODE> - Value to assign to SignificanceLevel.</DL>
</DD>
</DL>
<HR>

<A NAME="getDatasetKeyColumns()"><!-- --></A><H3>
getDatasetKeyColumns</H3>
<PRE>
public <A HREF="../../weka/core/Range.html">Range</A> <B>getDatasetKeyColumns</B>()</PRE>
<DL>
<DD>Get the value of DatasetKeyColumns.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Value of DatasetKeyColumns.</DL>
</DD>
</DL>
<HR>

<A NAME="setDatasetKeyColumns(weka.core.Range)"><!-- --></A><H3>
setDatasetKeyColumns</H3>
<PRE>
public void <B>setDatasetKeyColumns</B>(<A HREF="../../weka/core/Range.html">Range</A>&nbsp;newDatasetKeyColumns)</PRE>
<DL>
<DD>Set the value of DatasetKeyColumns.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newDatasetKeyColumns</CODE> - Value to assign to DatasetKeyColumns.</DL>
</DD>
</DL>
<HR>

<A NAME="getRunColumn()"><!-- --></A><H3>
getRunColumn</H3>
<PRE>
public int <B>getRunColumn</B>()</PRE>
<DL>
<DD>Get the value of RunColumn.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Value of RunColumn.</DL>
</DD>
</DL>
<HR>

<A NAME="setRunColumn(int)"><!-- --></A><H3>
setRunColumn</H3>
<PRE>
public void <B>setRunColumn</B>(int&nbsp;newRunColumn)</PRE>
<DL>
<DD>Set the value of RunColumn.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newRunColumn</CODE> - Value to assign to RunColumn.</DL>
</DD>
</DL>
<HR>

<A NAME="getInstances()"><!-- --></A><H3>
getInstances</H3>
<PRE>
public <A HREF="../../weka/core/Instances.html">Instances</A> <B>getInstances</B>()</PRE>
<DL>
<DD>Get the value of Instances.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Value of Instances.</DL>
</DD>
</DL>
<HR>

<A NAME="setInstances(weka.core.Instances)"><!-- --></A><H3>
setInstances</H3>
<PRE>
public void <B>setInstances</B>(<A HREF="../../weka/core/Instances.html">Instances</A>&nbsp;newInstances)</PRE>
<DL>
<DD>Set the value of Instances.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newInstances</CODE> - Value to assign to Instances.</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>Test the class from the command line.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>args</CODE> - contains options for the instance ttests</DL>
</DD>
</DL>
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