subsetsizeforwardselection.html

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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/attributeSelection/SubsetSizeForwardSelection.html#setOptions(java.lang.String[])">setOptions</A></B>(java.lang.String[]&nbsp;options)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Parses a given list of options.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/attributeSelection/SubsetSizeForwardSelection.html#setPerformRanking(boolean)">setPerformRanking</A></B>(boolean&nbsp;b)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Perform initial ranking to select top-ranked attributes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/attributeSelection/SubsetSizeForwardSelection.html#setSeed(int)">setSeed</A></B>(int&nbsp;s)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Seed for cross validation subset size determination.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/attributeSelection/SubsetSizeForwardSelection.html#setSubsetSizeEvaluator(weka.attributeSelection.ASEvaluation)">setSubsetSizeEvaluator</A></B>(<A HREF="../../weka/attributeSelection/ASEvaluation.html" title="class in weka.attributeSelection">ASEvaluation</A>&nbsp;eval)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the subset evaluator to use for subset size determination.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/attributeSelection/SubsetSizeForwardSelection.html#setType(weka.core.SelectedTag)">setType</A></B>(<A HREF="../../weka/core/SelectedTag.html" title="class in weka.core">SelectedTag</A>&nbsp;t)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the type</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/attributeSelection/SubsetSizeForwardSelection.html#setVerbose(boolean)">setVerbose</A></B>(boolean&nbsp;b)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set whether verbose output should be generated.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/attributeSelection/SubsetSizeForwardSelection.html#subsetSizeEvaluatorTipText()">subsetSizeEvaluatorTipText</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the tip text for this property</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/attributeSelection/SubsetSizeForwardSelection.html#toString()">toString</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;returns a description of the search as a String</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/attributeSelection/SubsetSizeForwardSelection.html#typeTipText()">typeTipText</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the tip text for this property</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/attributeSelection/SubsetSizeForwardSelection.html#verboseTipText()">verboseTipText</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the tip text for this property</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_weka.attributeSelection.ASSearch"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class weka.attributeSelection.<A HREF="../../weka/attributeSelection/ASSearch.html" title="class in weka.attributeSelection">ASSearch</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../weka/attributeSelection/ASSearch.html#forName(java.lang.String, java.lang.String[])">forName</A>, <A HREF="../../weka/attributeSelection/ASSearch.html#makeCopies(weka.attributeSelection.ASSearch, int)">makeCopies</A></CODE></TD>
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&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>equals, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ============ FIELD DETAIL =========== -->

<A NAME="field_detail"><!-- --></A>
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Field Detail</B></FONT></TH>
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</TABLE>

<A NAME="TAGS_TYPE"><!-- --></A><H3>
TAGS_TYPE</H3>
<PRE>
public static final <A HREF="../../weka/core/Tag.html" title="class in weka.core">Tag</A>[] <B>TAGS_TYPE</B></PRE>
<DL>
<DL>
</DL>
</DL>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
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</TABLE>

<A NAME="SubsetSizeForwardSelection()"><!-- --></A><H3>
SubsetSizeForwardSelection</H3>
<PRE>
public <B>SubsetSizeForwardSelection</B>()</PRE>
<DL>
<DD>Constructor
<P>
</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<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 search method
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a description of the search method suitable for displaying in the
         explorer/experimenter gui</DL>
</DD>
</DL>
<HR>

<A NAME="getTechnicalInformation()"><!-- --></A><H3>
getTechnicalInformation</H3>
<PRE>
public <A HREF="../../weka/core/TechnicalInformation.html" title="class in weka.core">TechnicalInformation</A> <B>getTechnicalInformation</B>()</PRE>
<DL>
<DD>Returns an instance of a TechnicalInformation object, containing 
 detailed information about the technical background of this class,
 e.g., paper reference or book this class is based on.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the technical information about this class</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>
<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.

 Valid options are:
 <p>

 -I <br>
 Perform initial ranking to select top-ranked attributes.
 <p>

 -K <num> <br>
 Number of top-ranked attributes that are taken into account.
 <p>

 -T <0 = fixed-set | 1 = fixed-width> <br>
 Typ of Linear Forward Selection (default = 0).
 <p>

 -S <num> <br>
 Size of lookup cache for evaluated subsets. Expressed as a multiple of
 the number of attributes in the data set. (default = 1).
 <p>

 -E <string> <br>
 class name of subset evaluator to use for subset size determination
 (default = null, same subset evaluator as for ranking and final forward
 selection is used). Place any evaluator options LAST on the command line
 following a "--". eg. -A weka.attributeSelection.ClassifierSubsetEval ... --
 -M

 </pre>

 -F <num> <br>
 Number of cross validation folds for subset size determination (default =
 5).
 <p>

 -R <num> <br>
 Seed for cross validation subset size determination. (default = 1)
 <p>

 -Z <br>
 verbose on/off.
 <p>
<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="setLookupCacheSize(int)"><!-- --></A><H3>
setLookupCacheSize</H3>
<PRE>
public void <B>setLookupCacheSize</B>(int&nbsp;size)</PRE>
<DL>
<DD>Set the maximum size of the evaluated subset cache (hashtable). This is
 expressed as a multiplier for the number of attributes in the data set.
 (default = 1).
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>size</CODE> - the maximum size of the hashtable</DL>
</DD>
</DL>
<HR>

<A NAME="getLookupCacheSize()"><!-- --></A><H3>
getLookupCacheSize</H3>
<PRE>
public int <B>getLookupCacheSize</B>()</PRE>
<DL>
<DD>Return the maximum size of the evaluated subset cache (expressed as a
 multiplier for the number of attributes in a data set.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the maximum size of the hashtable.</DL>
</DD>
</DL>
<HR>

<A NAME="lookupCacheSizeTipText()"><!-- --></A><H3>
lookupCacheSizeTipText</H3>
<PRE>
public java.lang.String <B>lookupCacheSizeTipText</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="performRankingTipText()"><!-- --></A><H3>
performRankingTipText</H3>
<PRE>
public java.lang.String <B>performRankingTipText</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="setPerformRanking(boolean)"><!-- --></A><H3>
setPerformRanking</H3>
<PRE>
public void <B>setPerformRanking</B>(boolean&nbsp;b)</PRE>
<DL>
<DD>Perform initial ranking to select top-ranked attributes.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - true if initial ranking should be performed</DL>
</DD>
</DL>
<HR>

<A NAME="getPerformRanking()"><!-- --></A><H3>
getPerformRanking</H3>
<PRE>
public boolean <B>getPerformRanking</B>()</PRE>
<DL>
<DD>Get boolean if initial ranking should be performed to select the
 top-ranked attributes
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>true if initial ranking should be performed</DL>
</DD>
</DL>
<HR>

<A NAME="numUsedAttributesTipText()"><!-- --></A><H3>
numUsedAttributesTipText</H3>
<PRE>
public java.lang.String <B>numUsedAttributesTipText</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="setNumUsedAttributes(int)"><!-- --></A><H3>
setNumUsedAttributes</H3>
<PRE>
public void <B>setNumUsedAttributes</B>(int&nbsp;k)
                          throws java.lang.Exception</PRE>
<DL>
<DD>Set the number of top-ranked attributes that taken into account by the
 search process.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>k</CODE> - the number of attributes
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if k is less than 2</DL>
</DD>
</DL>
<HR>

<A NAME="getNumUsedAttributes()"><!-- --></A><H3>
getNumUsedAttributes</H3>