apriori.html

数据挖掘的最常用工具。由于开源

<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/associations/CARuleMiner.html#getInstancesOnlyClass()">getInstancesOnlyClass</A></CODE> in interface <CODE><A HREF="../../weka/associations/CARuleMiner.html" title="interface in weka.associations">CARuleMiner</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the class attribute of all instances.</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></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>an enumeration of all the available options.</DL>
</DD>
</DL>
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<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> -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></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 Apriori object.
<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></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>an array of strings suitable for passing to setOptions</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Outputs the size of all the generated sets of itemsets and the rules.
<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 string representation of the model</DL>
</DD>
</DL>
<HR>

<A NAME="metricString()"><!-- --></A><H3>
metricString</H3>
<PRE>
public java.lang.String <B>metricString</B>()</PRE>
<DL>
<DD>Returns the metric string for the chosen metric type
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/associations/CARuleMiner.html#metricString()">metricString</A></CODE> in interface <CODE><A HREF="../../weka/associations/CARuleMiner.html" title="interface in weka.associations">CARuleMiner</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a string describing the used metric for the interestingness of a class association rule</DL>
</DD>
</DL>
<HR>

<A NAME="removeAllMissingColsTipText()"><!-- --></A><H3>
removeAllMissingColsTipText</H3>
<PRE>
public java.lang.String <B>removeAllMissingColsTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property
<P>
<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="setRemoveAllMissingCols(boolean)"><!-- --></A><H3>
setRemoveAllMissingCols</H3>
<PRE>
public void <B>setRemoveAllMissingCols</B>(boolean&nbsp;r)</PRE>
<DL>
<DD>Remove columns containing all missing values.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>r</CODE> - true if cols are to be removed.</DL>
</DD>
</DL>
<HR>

<A NAME="getRemoveAllMissingCols()"><!-- --></A><H3>
getRemoveAllMissingCols</H3>
<PRE>
public boolean <B>getRemoveAllMissingCols</B>()</PRE>
<DL>
<DD>Returns whether columns containing all missing values are to be removed
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>true if columns are to be removed.</DL>
</DD>
</DL>
<HR>

<A NAME="upperBoundMinSupportTipText()"><!-- --></A><H3>
upperBoundMinSupportTipText</H3>
<PRE>
public java.lang.String <B>upperBoundMinSupportTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property
<P>
<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="getUpperBoundMinSupport()"><!-- --></A><H3>
getUpperBoundMinSupport</H3>
<PRE>
public double <B>getUpperBoundMinSupport</B>()</PRE>
<DL>
<DD>Get the value of upperBoundMinSupport.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>Value of upperBoundMinSupport.</DL>
</DD>
</DL>
<HR>

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

<A NAME="setClassIndex(int)"><!-- --></A><H3>
setClassIndex</H3>
<PRE>
public void <B>setClassIndex</B>(int&nbsp;index)</PRE>
<DL>
<DD>Sets the class index
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/associations/CARuleMiner.html#setClassIndex(int)">setClassIndex</A></CODE> in interface <CODE><A HREF="../../weka/associations/CARuleMiner.html" title="interface in weka.associations">CARuleMiner</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</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>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the index of the class attribute</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>
</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="setCar(boolean)"><!-- --></A><H3>
setCar</H3>
<PRE>
public void <B>setCar</B>(boolean&nbsp;flag)</PRE>
<DL>
<DD>Sets class association rule mining
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>flag</CODE> - if class association rules are mined, false otherwise</DL>
</DD>
</DL>
<HR>

<A NAME="getCar()"><!-- --></A><H3>
getCar</H3>
<PRE>
public boolean <B>getCar</B>()</PRE>
<DL>
<DD>Gets whether class association ruels are mined
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>true if class association rules are mined, false otherwise</DL>
</DD>
</DL>
<HR>

<A NAME="carTipText()"><!-- --></A><H3>
carTipText</H3>
<PRE>
public java.lang.String <B>carTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property
<P>
<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="lowerBoundMinSupportTipText()"><!-- --></A><H3>
lowerBoundMinSupportTipText</H3>
<PRE>
public java.lang.String <B>lowerBoundMinSupportTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property
<P>
<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="getLowerBoundMinSupport()"><!-- --></A><H3>
getLowerBoundMinSupport</H3>
<PRE>
public double <B>getLowerBoundMinSupport</B>()</PRE>
<DL>
<DD>Get the value of lowerBoundMinSupport.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>Value of lowerBoundMinSupport.</DL>
</DD>
</DL>
<HR>

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

<A NAME="getMetricType()"><!-- --></A><H3>
getMetricType</H3>
<PRE>
public <A HREF="../../weka/core/SelectedTag.html" title="class in weka.core">SelectedTag</A> <B>getMetricType</B>()</PRE>
<DL>
<DD>Get the metric type
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the type of metric to use for ranking rules</DL>
</DD>
</DL>
<HR>

<A NAME="metricTypeTipText()"><!-- --></A><H3>
metricTypeTipText</H3>
<PRE>
public java.lang.String <B>metricTypeTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property
<P>
<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="setMetricType(weka.core.SelectedTag)"><!-- --></A><H3>
setMetricType</H3>
<PRE>