instancefilter.html

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<CODE>&nbsp;java.util.Enumeration</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/filters/InstanceFilter.html#listOptions()">listOptions</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns an enumeration describing the available options</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/filters/InstanceFilter.html#main(java.lang.String[])">main</A></B>(java.lang.String[]&nbsp;argv)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Main method for testing this class.</TD>
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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/filters/InstanceFilter.html#setAttributeIndex(int)">setAttributeIndex</A></B>(int&nbsp;attribute)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets attribute to be used for selection</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../weka/filters/InstanceFilter.html#setInputFormat(weka.core.Instances)">setInputFormat</A></B>(<A HREF="../../weka/core/Instances.html">Instances</A>&nbsp;instanceInfo)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the format of the input instances.</TD>
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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/filters/InstanceFilter.html#setInvertSelection(boolean)">setInvertSelection</A></B>(boolean&nbsp;invert)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set whether selected values should be removed or kept.</TD>
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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/filters/InstanceFilter.html#setMatchMissingValues(boolean)">setMatchMissingValues</A></B>(boolean&nbsp;newMatchMissingValues)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets whether missing values are counted as a match.</TD>
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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/filters/InstanceFilter.html#setModifyHeader(boolean)">setModifyHeader</A></B>(boolean&nbsp;newModifyHeader)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets whether the header will be modified when selecting on nominal
 attributes.</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/filters/InstanceFilter.html#setNominalIndices(java.lang.String)">setNominalIndices</A></B>(java.lang.String&nbsp;rangeList)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set which nominal labels are to be included in the selection.</TD>
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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/filters/InstanceFilter.html#setNominalIndicesArr(int[])">setNominalIndicesArr</A></B>(int[]&nbsp;values)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set which values of a nominal attribute are to be used for
 selection.</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/filters/InstanceFilter.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>
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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/filters/InstanceFilter.html#setSplitPoint(double)">setSplitPoint</A></B>(double&nbsp;value)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Split point to be used for selection on numeric attribute.</TD>
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&nbsp;<A NAME="methods_inherited_from_class_weka.filters.Filter"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class weka.filters.<A HREF="../../weka/filters/Filter.html">Filter</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../weka/filters/Filter.html#batchFilterFile(weka.filters.Filter, java.lang.String[])">batchFilterFile</A>, <A HREF="../../weka/filters/Filter.html#batchFinished()">batchFinished</A>, <A HREF="../../weka/filters/Filter.html#bufferInput(weka.core.Instance)">bufferInput</A>, <A HREF="../../weka/filters/Filter.html#copyStringValues(weka.core.Instance, boolean, weka.core.Instances, weka.core.Instances)">copyStringValues</A>, <A HREF="../../weka/filters/Filter.html#copyStringValues(weka.core.Instance, boolean, weka.core.Instances, int[], weka.core.Instances, int[])">copyStringValues</A>, <A HREF="../../weka/filters/Filter.html#filterFile(weka.filters.Filter, java.lang.String[])">filterFile</A>, <A HREF="../../weka/filters/Filter.html#flushInput()">flushInput</A>, <A HREF="../../weka/filters/Filter.html#getInputFormat()">getInputFormat</A>, <A HREF="../../weka/filters/Filter.html#getInputStringIndex()">getInputStringIndex</A>, <A HREF="../../weka/filters/Filter.html#getOutputFormat()">getOutputFormat</A>, <A HREF="../../weka/filters/Filter.html#getOutputStringIndex()">getOutputStringIndex</A>, <A HREF="../../weka/filters/Filter.html#getStringIndices(weka.core.Instances)">getStringIndices</A>, <A HREF="../../weka/filters/Filter.html#inputFormat(weka.core.Instances)">inputFormat</A>, <A HREF="../../weka/filters/Filter.html#isOutputFormatDefined()">isOutputFormatDefined</A>, <A HREF="../../weka/filters/Filter.html#numPendingOutput()">numPendingOutput</A>, <A HREF="../../weka/filters/Filter.html#output()">output</A>, <A HREF="../../weka/filters/Filter.html#outputFormat()">outputFormat</A>, <A HREF="../../weka/filters/Filter.html#outputFormatPeek()">outputFormatPeek</A>, <A HREF="../../weka/filters/Filter.html#outputPeek()">outputPeek</A>, <A HREF="../../weka/filters/Filter.html#push(weka.core.Instance)">push</A>, <A HREF="../../weka/filters/Filter.html#resetQueue()">resetQueue</A>, <A HREF="../../weka/filters/Filter.html#setOutputFormat(weka.core.Instances)">setOutputFormat</A>, <A HREF="../../weka/filters/Filter.html#useFilter(weka.core.Instances, weka.filters.Filter)">useFilter</A></CODE></TD>
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&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.lang.Object</B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

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

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<TD COLSPAN=1><FONT SIZE="+2">
<B>Field Detail</B></FONT></TD>
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</TABLE>

<A NAME="m_AttributeSet"><!-- --></A><H3>
m_AttributeSet</H3>
<PRE>
protected int <B>m_AttributeSet</B></PRE>
<DL>
<DD>Stores the attribute setting</DL>
<HR>

<A NAME="m_Attribute"><!-- --></A><H3>
m_Attribute</H3>
<PRE>
protected int <B>m_Attribute</B></PRE>
<DL>
<DD>Stores which attribute to be used for filtering</DL>
<HR>

<A NAME="m_Values"><!-- --></A><H3>
m_Values</H3>
<PRE>
protected <A HREF="../../weka/core/Range.html">Range</A> <B>m_Values</B></PRE>
<DL>
<DD>Stores which values of nominal attribute are to be used for filtering.</DL>
<HR>

<A NAME="m_Value"><!-- --></A><H3>
m_Value</H3>
<PRE>
protected double <B>m_Value</B></PRE>
<DL>
<DD>Stores which value of a numeric attribute is to be used for filtering.</DL>
<HR>

<A NAME="m_Inverse"><!-- --></A><H3>
m_Inverse</H3>
<PRE>
protected boolean <B>m_Inverse</B></PRE>
<DL>
<DD>Inverse of test to be used?</DL>
<HR>

<A NAME="m_MatchMissingValues"><!-- --></A><H3>
m_MatchMissingValues</H3>
<PRE>
protected boolean <B>m_MatchMissingValues</B></PRE>
<DL>
<DD>True if missing values should count as a match</DL>
<HR>

<A NAME="m_ModifyHeader"><!-- --></A><H3>
m_ModifyHeader</H3>
<PRE>
protected boolean <B>m_ModifyHeader</B></PRE>
<DL>
<DD>Modify header for nominal attributes?</DL>
<HR>

<A NAME="m_NominalMapping"><!-- --></A><H3>
m_NominalMapping</H3>
<PRE>
protected int[] <B>m_NominalMapping</B></PRE>
<DL>
<DD>If m_ModifyHeader, stores a mapping from old to new indexes</DL>

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

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<TD COLSPAN=1><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TD>
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<A NAME="InstanceFilter()"><!-- --></A><H3>
InstanceFilter</H3>
<PRE>
public <B>InstanceFilter</B>()</PRE>
<DL>
<DD>Default constructor</DL>

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

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<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<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">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>

 -C num<br>
 Choose attribute to be used for selection (default last).<p>

 -S num<br>
 Numeric value to be used for selection on numeric attribute.
 Instances with values smaller than given value will be selected.
 (default 0) <p>

 -L index1,index2-index4,...<br>
 Range of label indices to be used for selection on nominal attribute.
 First and last are valid indexes. (default all values)<p>

 -M <br>
 Missing values count as a match. This setting is independent of
 the -V option. (default missing values don't match)<p>

 -V<br>
 Invert matching sense.<p>

 -H<br>
 When selecting on nominal attributes, removes header references to
 excluded values. <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">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 filter.<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">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="setInputFormat(weka.core.Instances)"><!-- --></A><H3>
setInputFormat</H3>
<PRE>
public boolean <B>setInputFormat</B>(<A HREF="../../weka/core/Instances.html">Instances</A>&nbsp;instanceInfo)
                       throws java.lang.Exception</PRE>
<DL>
<DD>Sets the format of the input instances.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/filters/Filter.html#setInputFormat(weka.core.Instances)">setInputFormat</A></CODE> in class <CODE><A HREF="../../weka/filters/Filter.html">Filter</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instanceInfo</CODE> - an Instances object containing the input instance
 structure (any instances contained in the object are ignored - only the
 structure is required).<DT><B>Throws:</B><DD><CODE><A HREF="../../weka/core/UnsupportedAttributeTypeException.html">UnsupportedAttributeTypeException</A></CODE> - if the specified attribute
 is neither numeric or nominal.</DL>
</DD>
</DL>