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<A NAME="enumerateAttributes()"><!-- --></A><H3>
enumerateAttributes</H3>
<PRE>
public java.util.Enumeration <B>enumerateAttributes</B>()</PRE>
<DL>
<DD>Returns an enumeration of all the attributes.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>enumeration of all the attributes
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../weka/core/UnassignedDatasetException.html" title="class in weka.core">UnassignedDatasetException</A></CODE> - if the instance doesn't
 have access to a dataset</DL>
</DD>
</DL>
<HR>

<A NAME="equalHeaders(weka.core.Instance)"><!-- --></A><H3>
equalHeaders</H3>
<PRE>
public boolean <B>equalHeaders</B>(<A HREF="../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;inst)</PRE>
<DL>
<DD>Tests if the headers of two instances are equivalent.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>true if the header of the given instance is 
 equivalent to this instance's header
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../weka/core/UnassignedDatasetException.html" title="class in weka.core">UnassignedDatasetException</A></CODE> - if instance doesn't have access to any
 dataset</DL>
</DD>
</DL>
<HR>

<A NAME="hasMissingValue()"><!-- --></A><H3>
hasMissingValue</H3>
<PRE>
public boolean <B>hasMissingValue</B>()</PRE>
<DL>
<DD>Tests whether an instance has a missing value. Skips the class attribute if set.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>true if instance has a missing value.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../weka/core/UnassignedDatasetException.html" title="class in weka.core">UnassignedDatasetException</A></CODE> - if instance doesn't have access to any
 dataset</DL>
</DD>
</DL>
<HR>

<A NAME="index(int)"><!-- --></A><H3>
index</H3>
<PRE>
public int <B>index</B>(int&nbsp;position)</PRE>
<DL>
<DD>Returns the index of the attribute stored at the given position.
 Just returns the given value.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>position</CODE> - the position
<DT><B>Returns:</B><DD>the index of the attribute stored at the given position</DL>
</DD>
</DL>
<HR>

<A NAME="insertAttributeAt(int)"><!-- --></A><H3>
insertAttributeAt</H3>
<PRE>
public void <B>insertAttributeAt</B>(int&nbsp;position)</PRE>
<DL>
<DD>Inserts an attribute at the given position (0 to 
 numAttributes()). Only succeeds if the instance does not
 have access to any dataset because otherwise inconsistencies
 could be introduced.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.lang.RuntimeException</CODE> - if the instance has accesss to a
 dataset
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the position is out of range</DL>
</DD>
</DL>
<HR>

<A NAME="isMissing(int)"><!-- --></A><H3>
isMissing</H3>
<PRE>
public boolean <B>isMissing</B>(int&nbsp;attIndex)</PRE>
<DL>
<DD>Tests if a specific value is "missing".
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>attIndex</CODE> - the attribute's index</DL>
</DD>
</DL>
<HR>

<A NAME="isMissingSparse(int)"><!-- --></A><H3>
isMissingSparse</H3>
<PRE>
public boolean <B>isMissingSparse</B>(int&nbsp;indexOfIndex)</PRE>
<DL>
<DD>Tests if a specific value is "missing". Does
 the same thing as isMissing() if applied to an Instance.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>indexOfIndex</CODE> - the index of the attribute's index</DL>
</DD>
</DL>
<HR>

<A NAME="isMissing(weka.core.Attribute)"><!-- --></A><H3>
isMissing</H3>
<PRE>
public boolean <B>isMissing</B>(<A HREF="../../weka/core/Attribute.html" title="class in weka.core">Attribute</A>&nbsp;att)</PRE>
<DL>
<DD>Tests if a specific value is "missing".
 The given attribute has to belong to a dataset.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>att</CODE> - the attribute</DL>
</DD>
</DL>
<HR>

<A NAME="isMissingValue(double)"><!-- --></A><H3>
isMissingValue</H3>
<PRE>
public static boolean <B>isMissingValue</B>(double&nbsp;val)</PRE>
<DL>
<DD>Tests if the given value codes "missing".
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>val</CODE> - the value to be tested
<DT><B>Returns:</B><DD>true if val codes "missing"</DL>
</DD>
</DL>
<HR>

<A NAME="mergeInstance(weka.core.Instance)"><!-- --></A><H3>
mergeInstance</H3>
<PRE>
public <A HREF="../../weka/core/Instance.html" title="class in weka.core">Instance</A> <B>mergeInstance</B>(<A HREF="../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;inst)</PRE>
<DL>
<DD>Merges this instance with the given instance and returns
 the result. Dataset is set to null.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>inst</CODE> - the instance to be merged with this one
<DT><B>Returns:</B><DD>the merged instances</DL>
</DD>
</DL>
<HR>

<A NAME="missingValue()"><!-- --></A><H3>
missingValue</H3>
<PRE>
public static double <B>missingValue</B>()</PRE>
<DL>
<DD>Returns the double that codes "missing".
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the double that codes "missing"</DL>
</DD>
</DL>
<HR>

<A NAME="numAttributes()"><!-- --></A><H3>
numAttributes</H3>
<PRE>
public int <B>numAttributes</B>()</PRE>
<DL>
<DD>Returns the number of attributes.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of attributes as an integer</DL>
</DD>
</DL>
<HR>

<A NAME="numClasses()"><!-- --></A><H3>
numClasses</H3>
<PRE>
public int <B>numClasses</B>()</PRE>
<DL>
<DD>Returns the number of class labels.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of class labels as an integer if the 
 class attribute is nominal, 1 otherwise.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../weka/core/UnassignedDatasetException.html" title="class in weka.core">UnassignedDatasetException</A></CODE> - if instance doesn't have access to any
 dataset</DL>
</DD>
</DL>
<HR>

<A NAME="numValues()"><!-- --></A><H3>
numValues</H3>
<PRE>
public int <B>numValues</B>()</PRE>
<DL>
<DD>Returns the number of values present. Always the same as numAttributes().
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of values</DL>
</DD>
</DL>
<HR>

<A NAME="replaceMissingValues(double[])"><!-- --></A><H3>
replaceMissingValues</H3>
<PRE>
public void <B>replaceMissingValues</B>(double[]&nbsp;array)</PRE>
<DL>
<DD>Replaces all missing values in the instance with the
 values contained in the given array. A deep copy of
 the vector of attribute values is performed before the
 values are replaced.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>array</CODE> - containing the means and modes
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if numbers of attributes are unequal</DL>
</DD>
</DL>
<HR>

<A NAME="setClassMissing()"><!-- --></A><H3>
setClassMissing</H3>
<PRE>
public void <B>setClassMissing</B>()</PRE>
<DL>
<DD>Sets the class value of an instance to be "missing". A deep copy of
 the vector of attribute values is performed before the
 value is set to be missing.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../weka/core/UnassignedClassException.html" title="class in weka.core">UnassignedClassException</A></CODE> - if the class is not set
<DD><CODE><A HREF="../../weka/core/UnassignedDatasetException.html" title="class in weka.core">UnassignedDatasetException</A></CODE> - if the instance doesn't
 have access to a dataset</DL>
</DD>
</DL>
<HR>

<A NAME="setClassValue(double)"><!-- --></A><H3>
setClassValue</H3>
<PRE>
public void <B>setClassValue</B>(double&nbsp;value)</PRE>
<DL>
<DD>Sets the class value of an instance to the given value (internal
 floating-point format).  A deep copy of the vector of attribute
 values is performed before the value is set.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the new attribute value (If the corresponding
 attribute is nominal (or a string) then this is the new value's
 index as a double).
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../weka/core/UnassignedClassException.html" title="class in weka.core">UnassignedClassException</A></CODE> - if the class is not set
<DD><CODE>UnaddignedDatasetException</CODE> - if the instance doesn't
 have access to a dataset</DL>
</DD>
</DL>
<HR>

<A NAME="setClassValue(java.lang.String)"><!-- --></A><H3>
setClassValue</H3>
<PRE>
public final void <B>setClassValue</B>(java.lang.String&nbsp;value)</PRE>
<DL>
<DD>Sets the class value of an instance to the given value. A deep
 copy of the vector of attribute values is performed before the
 value is set.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the new class value (If the class
 is a string attribute and the value can't be found,
 the value is added to the attribute).
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../weka/core/UnassignedClassException.html" title="class in weka.core">UnassignedClassException</A></CODE> - if the class is not set
<DD><CODE><A HREF="../../weka/core/UnassignedDatasetException.html" title="class in weka.core">UnassignedDatasetException</A></CODE> - if the dataset is not set
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the attribute is not
 nominal or a string, or the value couldn't be found for a nominal
 attribute</DL>
</DD>
</DL>
<HR>

<A NAME="setDataset(weka.core.Instances)"><!-- --></A><H3>
setDataset</H3>
<PRE>
public final void <B>setDataset</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;instances)</PRE>
<DL>
<DD>Sets the reference to the dataset. Does not check if the instance
 is compatible with the dataset. Note: the dataset does not know
 about this instance. If the structure of the dataset's header
 gets changed, this instance will not be adjusted automatically.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instances</CODE> - the reference to the dataset</DL>
</DD>
</DL>
<HR>

<A NAME="setMissing(int)"><!-- --></A><H3>
setMissing</H3>
<PRE>
public final void <B>setMissing</B>(int&nbsp;attIndex)</PRE>
<DL>
<DD>Sets a specific value to be "missing". Performs a deep copy
 of the vector of attribute values before the value is set to
 be missing.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>attIndex</CODE> - the attribute's index</DL>
</DD>
</DL>
<HR>

<A NAME="setMissing(weka.core.Attribute)"><!-- --></A><H3>
setMissing</H3>
<PRE>
public final void <B>setMissing</B>(<A HREF="../../weka/core/Attribute.html" title="class in weka.core">Attribute</A>&nbsp;att)</PRE>
<DL>
<DD>Sets a specific value to be "missing". Performs a deep copy
 of the vector of attribute values before the value is set to
 be missing. The given attribute has to belong to a dataset.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>att</CODE> - the attribute</DL>
</DD>
</DL>
<HR>

<A NAME="setValue(int, double)"><!-- --></A><H3>
setValue</H3>
<PRE>
public void <B>setValue</B>(int&nbsp;attIndex,