discretizefilter.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

</TABLE>

<A NAME="listOptions()"><!-- --></A><H3>
listOptions</H3>
<PRE>
public java.util.Enumeration <B>listOptions</B>()</PRE>
<DL>
<DD>Gets 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 the options for this object. Valid options are: <p>

 -B num <br>
 Specify the (maximum) number of equal-width bins to divide
 numeric attributes into. (default class-based discretization).<p>

 -O
 Optimizes the number of bins using a leave-one-out estimate of the 
 entropy.

 -R col1,col2-col4,... <br>
 Specify list of columns to discretize. First
 and last are valid indexes. (default none) <p>

 -V <br>
 Invert matching sense.<p>

 -D <br>
 Make binary nominal attributes. <p>

 -E <br>
 Use better encoding of split point for MDL. <p>
   
 -K <br>
 Use Kononeko's MDL criterion. <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> - 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 filter.<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="setInputFormat(weka.core.Instances)"><!-- --></A><H3>
setInputFormat</H3>
<PRE>
public boolean <B>setInputFormat</B>(<A HREF="../../weka/core/Instances.html">Instances</A>&nbsp;instanceInfo)
                       throws java.lang.Exception</PRE>
<DL>
<DD>Sets the format of the input instances.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/filters/Filter.html#setInputFormat(weka.core.Instances)">setInputFormat</A></CODE> in class <CODE><A HREF="../../weka/filters/Filter.html">Filter</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instanceInfo</CODE> - an Instances object containing the input instance
 structure (any instances contained in the object are ignored - only the
 structure is required).<DT><B>Returns:</B><DD>true if the outputFormat may be collected immediately<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if the input format can't be set successfully</DL>
</DD>
</DL>
<HR>

<A NAME="input(weka.core.Instance)"><!-- --></A><H3>
input</H3>
<PRE>
public boolean <B>input</B>(<A HREF="../../weka/core/Instance.html">Instance</A>&nbsp;instance)</PRE>
<DL>
<DD>Input an instance for filtering. Ordinarily the instance is processed
 and made available for output immediately. Some filters require all
 instances be read before producing output.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/filters/Filter.html#input(weka.core.Instance)">input</A></CODE> in class <CODE><A HREF="../../weka/filters/Filter.html">Filter</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instance</CODE> - the input instance<DT><B>Returns:</B><DD>true if the filtered instance may now be
 collected with output().<DT><B>Throws:</B><DD><CODE>java.lang.IllegalStateException</CODE> - if no input format has been defined.</DL>
</DD>
</DL>
<HR>

<A NAME="batchFinished()"><!-- --></A><H3>
batchFinished</H3>
<PRE>
public boolean <B>batchFinished</B>()</PRE>
<DL>
<DD>Signifies that this batch of input to the filter is finished. If the 
 filter requires all instances prior to filtering, output() may now 
 be called to retrieve the filtered instances.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/filters/Filter.html#batchFinished()">batchFinished</A></CODE> in class <CODE><A HREF="../../weka/filters/Filter.html">Filter</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>true if there are instances pending output<DT><B>Throws:</B><DD><CODE>java.lang.IllegalStateException</CODE> - if no input structure has been defined</DL>
</DD>
</DL>
<HR>

<A NAME="globalInfo()"><!-- --></A><H3>
globalInfo</H3>
<PRE>
public java.lang.String <B>globalInfo</B>()</PRE>
<DL>
<DD>Returns a string describing this filter<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a description of the filter suitable for
 displaying in the explorer/experimenter gui</DL>
</DD>
</DL>
<HR>

<A NAME="findNumBinsTipText()"><!-- --></A><H3>
findNumBinsTipText</H3>
<PRE>
public java.lang.String <B>findNumBinsTipText</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="getFindNumBins()"><!-- --></A><H3>
getFindNumBins</H3>
<PRE>
public boolean <B>getFindNumBins</B>()</PRE>
<DL>
<DD>Get the value of FindNumBins.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Value of FindNumBins.</DL>
</DD>
</DL>
<HR>

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

<A NAME="makeBinaryTipText()"><!-- --></A><H3>
makeBinaryTipText</H3>
<PRE>
public java.lang.String <B>makeBinaryTipText</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="getMakeBinary()"><!-- --></A><H3>
getMakeBinary</H3>
<PRE>
public boolean <B>getMakeBinary</B>()</PRE>
<DL>
<DD>Gets whether binary attributes should be made for discretized ones.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>true if attributes will be binarized</DL>
</DD>
</DL>
<HR>

<A NAME="setMakeBinary(boolean)"><!-- --></A><H3>
setMakeBinary</H3>
<PRE>
public void <B>setMakeBinary</B>(boolean&nbsp;makeBinary)</PRE>
<DL>
<DD>Sets whether binary attributes should be made for discretized ones.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>makeBinary</CODE> - if binary attributes are to be made</DL>
</DD>
</DL>
<HR>

<A NAME="useMDLTipText()"><!-- --></A><H3>
useMDLTipText</H3>
<PRE>
public java.lang.String <B>useMDLTipText</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="getUseMDL()"><!-- --></A><H3>
getUseMDL</H3>
<PRE>
public boolean <B>getUseMDL</B>()</PRE>
<DL>
<DD>Gets whether MDL will be used as the discretisation method.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>true if so, false if fixed bins should be used.</DL>
</DD>
</DL>
<HR>

<A NAME="setUseMDL(boolean)"><!-- --></A><H3>
setUseMDL</H3>
<PRE>
public void <B>setUseMDL</B>(boolean&nbsp;useMDL)</PRE>
<DL>
<DD>Sets whether MDL will be used as the discretisation method.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>useMDL</CODE> - true if MDL should be used, false if fixed bins should
 be used.</DL>
</DD>
</DL>
<HR>

<A NAME="useKononenkoTipText()"><!-- --></A><H3>
useKononenkoTipText</H3>
<PRE>
public java.lang.String <B>useKononenkoTipText</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="getUseKononenko()"><!-- --></A><H3>
getUseKononenko</H3>
<PRE>
public boolean <B>getUseKononenko</B>()</PRE>
<DL>
<DD>Gets whether Kononenko's MDL criterion is to be used.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>true if Kononenko's criterion will be used.</DL>
</DD>
</DL>
<HR>

<A NAME="setUseKononenko(boolean)"><!-- --></A><H3>
setUseKononenko</H3>
<PRE>
public void <B>setUseKononenko</B>(boolean&nbsp;useKon)</PRE>
<DL>
<DD>Sets whether Kononenko's MDL criterion is to be used.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>useKon</CODE> - true if Kononenko's one is to be used</DL>
</DD>
</DL>
<HR>

<A NAME="useBetterEncodingTipText()"><!-- --></A><H3>
useBetterEncodingTipText</H3>
<PRE>
public java.lang.String <B>useBetterEncodingTipText</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="getUseBetterEncoding()"><!-- --></A><H3>
getUseBetterEncoding</H3>
<PRE>
public boolean <B>getUseBetterEncoding</B>()</PRE>
<DL>
<DD>Gets whether better encoding is to be used for MDL.<DD><DL>
</DL>
</DD>
<DD><DL>