filteredassociator.html

数据挖掘的最常用工具。由于开源

<PRE>
public <B>FilteredAssociator</B>()</PRE>
<DL>
<DD>Default constructor.
<P>
</DL>

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<B>Method Detail</B></FONT></TH>
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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 Associator
<P>
<DD><DL>

<DT><B>Returns:</B><DD>a description of the Associator 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.
<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/associations/SingleAssociatorEnhancer.html#listOptions()">listOptions</A></CODE> in class <CODE><A HREF="../../weka/associations/SingleAssociatorEnhancer.html" title="class in weka.associations">SingleAssociatorEnhancer</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> -F &lt;filter specification&gt;
  Full class name of filter to use, followed
  by filter options.
  eg: "weka.filters.unsupervised.attribute.Remove -V -R 1,2"
  (default: weka.filters.MultiFilter with
  weka.filters.unsupervised.attribute.ReplaceMissingValues)</pre>
 
 <pre> -c &lt;the class index&gt;
  The class index.
  (default: -1, i.e. unset)</pre>
 
 <pre> -W
  Full name of base associator.
  (default: weka.associations.Apriori)</pre>
 
 <pre> 
 Options specific to associator weka.associations.Apriori:
 </pre>
 
 <pre> -N &lt;required number of rules output&gt;
  The required number of rules. (default = 10)</pre>
 
 <pre> -T &lt;0=confidence | 1=lift | 2=leverage | 3=Conviction&gt;
  The metric type by which to rank rules. (default = confidence)</pre>
 
 <pre> -C &lt;minimum metric score of a rule&gt;
  The minimum confidence of a rule. (default = 0.9)</pre>
 
 <pre> -D &lt;delta for minimum support&gt;
  The delta by which the minimum support is decreased in
  each iteration. (default = 0.05)</pre>
 
 <pre> -U &lt;upper bound for minimum support&gt;
  Upper bound for minimum support. (default = 1.0)</pre>
 
 <pre> -M &lt;lower bound for minimum support&gt;
  The lower bound for the minimum support. (default = 0.1)</pre>
 
 <pre> -S &lt;significance level&gt;
  If used, rules are tested for significance at
  the given level. Slower. (default = no significance testing)</pre>
 
 <pre> -I
  If set the itemsets found are also output. (default = no)</pre>
 
 <pre> -R
  Remove columns that contain all missing values (default = no)</pre>
 
 <pre> -V
  Report progress iteratively. (default = no)</pre>
 
 <pre> -A
  If set class association rules are mined. (default = no)</pre>
 
 <pre> -c &lt;the class index&gt;
  The class index. (default = last)</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/associations/SingleAssociatorEnhancer.html#setOptions(java.lang.String[])">setOptions</A></CODE> in class <CODE><A HREF="../../weka/associations/SingleAssociatorEnhancer.html" title="class in weka.associations">SingleAssociatorEnhancer</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 Associator.
<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/associations/SingleAssociatorEnhancer.html#getOptions()">getOptions</A></CODE> in class <CODE><A HREF="../../weka/associations/SingleAssociatorEnhancer.html" title="class in weka.associations">SingleAssociatorEnhancer</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="filterTipText()"><!-- --></A><H3>
filterTipText</H3>
<PRE>
public java.lang.String <B>filterTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property
<P>
<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="setFilter(weka.filters.Filter)"><!-- --></A><H3>
setFilter</H3>
<PRE>
public void <B>setFilter</B>(<A HREF="../../weka/filters/Filter.html" title="class in weka.filters">Filter</A>&nbsp;value)</PRE>
<DL>
<DD>Sets the filter
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the filter with all options set.</DL>
</DD>
</DL>
<HR>

<A NAME="getFilter()"><!-- --></A><H3>
getFilter</H3>
<PRE>
public <A HREF="../../weka/filters/Filter.html" title="class in weka.filters">Filter</A> <B>getFilter</B>()</PRE>
<DL>
<DD>Gets the filter used.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the current filter</DL>
</DD>
</DL>
<HR>

<A NAME="classIndexTipText()"><!-- --></A><H3>
classIndexTipText</H3>
<PRE>
public java.lang.String <B>classIndexTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property
<P>
<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="setClassIndex(int)"><!-- --></A><H3>
setClassIndex</H3>
<PRE>
public void <B>setClassIndex</B>(int&nbsp;value)</PRE>
<DL>
<DD>Sets the class index
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the class index</DL>
</DD>
</DL>
<HR>

<A NAME="getClassIndex()"><!-- --></A><H3>
getClassIndex</H3>
<PRE>
public int <B>getClassIndex</B>()</PRE>
<DL>
<DD>Gets the class index
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the index of the class attribute</DL>
</DD>
</DL>
<HR>

<A NAME="getCapabilities()"><!-- --></A><H3>
getCapabilities</H3>
<PRE>
public <A HREF="../../weka/core/Capabilities.html" title="class in weka.core">Capabilities</A> <B>getCapabilities</B>()</PRE>
<DL>
<DD>Returns default capabilities of the associator.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/associations/Associator.html#getCapabilities()">getCapabilities</A></CODE> in interface <CODE><A HREF="../../weka/associations/Associator.html" title="interface in weka.associations">Associator</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/core/CapabilitiesHandler.html#getCapabilities()">getCapabilities</A></CODE> in interface <CODE><A HREF="../../weka/core/CapabilitiesHandler.html" title="interface in weka.core">CapabilitiesHandler</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/associations/SingleAssociatorEnhancer.html#getCapabilities()">getCapabilities</A></CODE> in class <CODE><A HREF="../../weka/associations/SingleAssociatorEnhancer.html" title="class in weka.associations">SingleAssociatorEnhancer</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the capabilities of this associator<DT><B>See Also:</B><DD><A HREF="../../weka/core/Capabilities.html" title="class in weka.core"><CODE>Capabilities</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="buildAssociations(weka.core.Instances)"><!-- --></A><H3>
buildAssociations</H3>
<PRE>
public void <B>buildAssociations</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data)
                       throws java.lang.Exception</PRE>
<DL>
<DD>Build the associator on the filtered data.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - the training data
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the Associator could not be built successfully</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Output a representation of this associator
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a representation of this associator</DL>
</DD>
</DL>
<HR>

<A NAME="getRevision()"><!-- --></A><H3>
getRevision</H3>
<PRE>
public java.lang.String <B>getRevision</B>()</PRE>
<DL>
<DD>Returns the revision string.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the revision</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 running this class.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>args</CODE> - commandline arguments, use "-h" for full list</DL>
</DD>
</DL>
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