bestfirst.html

weka是机器学习和数据挖掘领域最有影响力的开源项目之一

startSetTipText</H3>
<PRE>
public java.lang.String <B>startSetTipText</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="setStartSet(java.lang.String)"><!-- --></A><H3>
setStartSet</H3>
<PRE>
public void <B>setStartSet</B>(java.lang.String&nbsp;startSet)
                 throws java.lang.Exception</PRE>
<DL>
<DD>Sets a starting set of attributes for the search. It is the
 search method's responsibility to report this start set (if any)
 in its toString() method.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/attributeSelection/StartSetHandler.html#setStartSet(java.lang.String)">setStartSet</A></CODE> in interface <CODE><A HREF="../../weka/attributeSelection/StartSetHandler.html" title="interface in weka.attributeSelection">StartSetHandler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>startSet</CODE> - a string containing a list of attributes (and or ranges),
 eg. 1,2,6,10-15.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if start set can't be set.</DL>
</DD>
</DL>
<HR>

<A NAME="getStartSet()"><!-- --></A><H3>
getStartSet</H3>
<PRE>
public java.lang.String <B>getStartSet</B>()</PRE>
<DL>
<DD>Returns a list of attributes (and or attribute ranges) as a String
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/attributeSelection/StartSetHandler.html#getStartSet()">getStartSet</A></CODE> in interface <CODE><A HREF="../../weka/attributeSelection/StartSetHandler.html" title="interface in weka.attributeSelection">StartSetHandler</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a list of attributes (and or attribute ranges)</DL>
</DD>
</DL>
<HR>

<A NAME="searchTerminationTipText()"><!-- --></A><H3>
searchTerminationTipText</H3>
<PRE>
public java.lang.String <B>searchTerminationTipText</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="setSearchTermination(int)"><!-- --></A><H3>
setSearchTermination</H3>
<PRE>
public void <B>setSearchTermination</B>(int&nbsp;t)
                          throws java.lang.Exception</PRE>
<DL>
<DD>Set the numnber of non-improving nodes to consider before terminating
 search.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>t</CODE> - the number of non-improving nodes
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if t is less than 1</DL>
</DD>
</DL>
<HR>

<A NAME="getSearchTermination()"><!-- --></A><H3>
getSearchTermination</H3>
<PRE>
public int <B>getSearchTermination</B>()</PRE>
<DL>
<DD>Get the termination criterion (number of non-improving nodes).
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of non-improving nodes</DL>
</DD>
</DL>
<HR>

<A NAME="directionTipText()"><!-- --></A><H3>
directionTipText</H3>
<PRE>
public java.lang.String <B>directionTipText</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="setDirection(weka.core.SelectedTag)"><!-- --></A><H3>
setDirection</H3>
<PRE>
public void <B>setDirection</B>(<A HREF="../../weka/core/SelectedTag.html" title="class in weka.core">SelectedTag</A>&nbsp;d)</PRE>
<DL>
<DD>Set the search direction
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>d</CODE> - the direction of the search</DL>
</DD>
</DL>
<HR>

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

<DT><B>Returns:</B><DD>the direction of the search</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 BestFirst.
<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>returns a description of the search as a String
<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 description of the search</DL>
</DD>
</DL>
<HR>

<A NAME="search(weka.attributeSelection.ASEvaluation, weka.core.Instances)"><!-- --></A><H3>
search</H3>
<PRE>
public int[] <B>search</B>(<A HREF="../../weka/attributeSelection/ASEvaluation.html" title="class in weka.attributeSelection">ASEvaluation</A>&nbsp;ASEval,
                    <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data)
             throws java.lang.Exception</PRE>
<DL>
<DD>Searches the attribute subset space by best first search
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/attributeSelection/ASSearch.html#search(weka.attributeSelection.ASEvaluation, weka.core.Instances)">search</A></CODE> in class <CODE><A HREF="../../weka/attributeSelection/ASSearch.html" title="class in weka.attributeSelection">ASSearch</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>ASEval</CODE> - the attribute evaluator to guide the search<DD><CODE>data</CODE> - the training instances.
<DT><B>Returns:</B><DD>an array (not necessarily ordered) of selected attribute indexes
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the search can't be completed</DL>
</DD>
</DL>
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