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<A NAME="LFSMethods()"><!-- --></A><H3>
LFSMethods</H3>
<PRE>
public <B>LFSMethods</B>()</PRE>
<DL>
<DD>empty constructor

 methods are not static because of access to inner class Link2 and
 LinkedList2
<P>
</DL>

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<A NAME="getBestGroup()"><!-- --></A><H3>
getBestGroup</H3>
<PRE>
public java.util.BitSet <B>getBestGroup</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>best group found by forwardSearch/floatingForwardSearch</DL>
</DD>
</DL>
<HR>

<A NAME="getBestMerit()"><!-- --></A><H3>
getBestMerit</H3>
<PRE>
public double <B>getBestMerit</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>merit of best group found by forwardSearch/floatingForwardSearch</DL>
</DD>
</DL>
<HR>

<A NAME="getBestGroupOfSize(int)"><!-- --></A><H3>
getBestGroupOfSize</H3>
<PRE>
public java.util.BitSet <B>getBestGroupOfSize</B>(int&nbsp;size)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>best group of size found by forwardSearch</DL>
</DD>
</DL>
<HR>

<A NAME="getNumEvalsCached()"><!-- --></A><H3>
getNumEvalsCached</H3>
<PRE>
public int <B>getNumEvalsCached</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>number of cached / not performed evaluations</DL>
</DD>
</DL>
<HR>

<A NAME="getNumEvalsTotal()"><!-- --></A><H3>
getNumEvalsTotal</H3>
<PRE>
public int <B>getNumEvalsTotal</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>number totally performed evaluations</DL>
</DD>
</DL>
<HR>

<A NAME="rankAttributes(weka.core.Instances, weka.attributeSelection.SubsetEvaluator, boolean)"><!-- --></A><H3>
rankAttributes</H3>
<PRE>
public int[] <B>rankAttributes</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data,
                            <A HREF="../../weka/attributeSelection/SubsetEvaluator.html" title="interface in weka.attributeSelection">SubsetEvaluator</A>&nbsp;evaluator,
                            boolean&nbsp;verbose)
                     throws java.lang.Exception</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>ranking (integer array) of attributes in data with evaluator (sorting is NOT stable!)
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="forwardSearch(int, java.util.BitSet, int[], int, boolean, int, int, weka.core.Instances, weka.attributeSelection.SubsetEvaluator, boolean)"><!-- --></A><H3>
forwardSearch</H3>
<PRE>
public java.util.BitSet <B>forwardSearch</B>(int&nbsp;cacheSize,
                                      java.util.BitSet&nbsp;startGroup,
                                      int[]&nbsp;ranking,
                                      int&nbsp;k,
                                      boolean&nbsp;incrementK,
                                      int&nbsp;maxStale,
                                      int&nbsp;forceResultSize,
                                      <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data,
                                      <A HREF="../../weka/attributeSelection/SubsetEvaluator.html" title="interface in weka.attributeSelection">SubsetEvaluator</A>&nbsp;evaluator,
                                      boolean&nbsp;verbose)
                               throws java.lang.Exception</PRE>
<DL>
<DD>Performs linear forward selection
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>cacheSize</CODE> - chacheSize (times number of instances) to store already evaluated sets<DD><CODE>startGroup</CODE> - start group for search (can be null)<DD><CODE>ranking</CODE> - ranking of attributes (as produced by rankAttributes), no ranking would be [0,1,2,3,4..]<DD><CODE>k</CODE> - number of top k attributes that are taken into account<DD><CODE>incrementK</CODE> - true -> fixed-set, false -> fixed-width<DD><CODE>maxStale</CODE> - number of times the search proceeds even though no improvement was found (1 = hill-climbing)<DD><CODE>forceResultSize</CODE> - stopping criteria changed from no-improvement (forceResultSize=-1) to subset-size<DD><CODE>data</CODE> - <DD><CODE>evaluator</CODE> - <DD><CODE>verbose</CODE> - 
<DT><B>Returns:</B><DD>BitSet, that cotains the best-group found
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="floatingForwardSearch(int, java.util.BitSet, int[], int, boolean, int, weka.core.Instances, weka.attributeSelection.SubsetEvaluator, boolean)"><!-- --></A><H3>
floatingForwardSearch</H3>
<PRE>
public java.util.BitSet <B>floatingForwardSearch</B>(int&nbsp;cacheSize,
                                              java.util.BitSet&nbsp;startGroup,
                                              int[]&nbsp;ranking,
                                              int&nbsp;k,
                                              boolean&nbsp;incrementK,
                                              int&nbsp;maxStale,
                                              <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;data,
                                              <A HREF="../../weka/attributeSelection/SubsetEvaluator.html" title="interface in weka.attributeSelection">SubsetEvaluator</A>&nbsp;evaluator,
                                              boolean&nbsp;verbose)
                                       throws java.lang.Exception</PRE>
<DL>
<DD>Performs linear floating forward selection
 ( the stopping criteria cannot be changed to a specific size value )
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>cacheSize</CODE> - chacheSize (times number of instances) to store already evaluated sets<DD><CODE>startGroup</CODE> - start group for search (can be null)<DD><CODE>ranking</CODE> - ranking of attributes (as produced by rankAttributes), no ranking would be [0,1,2,3,4..]<DD><CODE>k</CODE> - number of top k attributes that are taken into account<DD><CODE>incrementK</CODE> - true -> fixed-set, false -> fixed-width<DD><CODE>maxStale</CODE> - number of times the search proceeds even though no improvement was found (1 = hill-climbing)<DD><CODE>data</CODE> - <DD><CODE>evaluator</CODE> - <DD><CODE>verbose</CODE> - 
<DT><B>Returns:</B><DD>BitSet, that cotains the best-group found
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></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>Specified by:</B><DD><CODE><A HREF="../../weka/core/RevisionHandler.html#getRevision()">getRevision</A></CODE> in interface <CODE><A HREF="../../weka/core/RevisionHandler.html" title="interface in weka.core">RevisionHandler</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the revision</DL>
</DD>
</DL>
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