attribute.html

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<DD><DL>

<DT><B>Returns:</B><DD>true if the attribute is a date type</DL>
</DD>
</DL>
<HR>

<A NAME="name()"><!-- --></A><H3>
name</H3>
<PRE>
public final java.lang.String <B>name</B>()</PRE>
<DL>
<DD>Returns the attribute's name.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the attribute's name as a string</DL>
</DD>
</DL>
<HR>

<A NAME="numValues()"><!-- --></A><H3>
numValues</H3>
<PRE>
public final int <B>numValues</B>()</PRE>
<DL>
<DD>Returns the number of attribute values. Returns 0 for numeric attributes.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

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

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public final java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Returns a description of this attribute in ARFF format. Quotes
 strings if they contain whitespace characters, or if they
 are a question mark.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a description of this attribute as a string</DL>
</DD>
</DL>
<HR>

<A NAME="type()"><!-- --></A><H3>
type</H3>
<PRE>
public final int <B>type</B>()</PRE>
<DL>
<DD>Returns the attribute's type as an integer.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the attribute's type.</DL>
</DD>
</DL>
<HR>

<A NAME="value(int)"><!-- --></A><H3>
value</H3>
<PRE>
public final java.lang.String <B>value</B>(int&nbsp;valIndex)</PRE>
<DL>
<DD>Returns a value of a nominal or string attribute. 
 Returns an empty string if the attribute is neither
 nominal nor a string attribute.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>valIndex</CODE> - the value's index
<DT><B>Returns:</B><DD>the attribute's value as a string</DL>
</DD>
</DL>
<HR>

<A NAME="addStringValue(java.lang.String)"><!-- --></A><H3>
addStringValue</H3>
<PRE>
public int <B>addStringValue</B>(java.lang.String&nbsp;value)</PRE>
<DL>
<DD>Adds a string value to the list of valid strings for attributes
 of type STRING and returns the index of the string.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - The string value to add
<DT><B>Returns:</B><DD>the index assigned to the string, or -1 if the attribute is not
 of type Attribute.STRING</DL>
</DD>
</DL>
<HR>

<A NAME="addStringValue(weka.core.Attribute, int)"><!-- --></A><H3>
addStringValue</H3>
<PRE>
public int <B>addStringValue</B>(<A HREF="../../weka/core/Attribute.html" title="class in weka.core">Attribute</A>&nbsp;src,
                          int&nbsp;index)</PRE>
<DL>
<DD>Adds a string value to the list of valid strings for attributes
 of type STRING and returns the index of the string. This method is
 more efficient than addStringValue(String) for long strings.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>src</CODE> - The Attribute containing the string value to add.
<DT><B>Returns:</B><DD>the index assigned to the string, or -1 if the attribute is not
 of type Attribute.STRING</DL>
</DD>
</DL>
<HR>

<A NAME="formatDate(double)"><!-- --></A><H3>
formatDate</H3>
<PRE>
public java.lang.String <B>formatDate</B>(double&nbsp;date)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="parseDate(java.lang.String)"><!-- --></A><H3>
parseDate</H3>
<PRE>
public double <B>parseDate</B>(java.lang.String&nbsp;string)
                 throws java.text.ParseException</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.text.ParseException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getMetadata()"><!-- --></A><H3>
getMetadata</H3>
<PRE>
public final <A HREF="../../weka/core/ProtectedProperties.html" title="class in weka.core">ProtectedProperties</A> <B>getMetadata</B>()</PRE>
<DL>
<DD>Returns the properties supplied for this attribute.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>metadata for this attribute</DL>
</DD>
</DL>
<HR>

<A NAME="ordering()"><!-- --></A><H3>
ordering</H3>
<PRE>
public final int <B>ordering</B>()</PRE>
<DL>
<DD>Returns the ordering of the attribute. One of the following:
 
 ORDERING_SYMBOLIC - attribute values should be treated as symbols.
 ORDERING_ORDERED  - attribute values have a global ordering.
 ORDERING_MODULO   - attribute values have an ordering which wraps.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the ordering type of the attribute</DL>
</DD>
</DL>
<HR>

<A NAME="isRegular()"><!-- --></A><H3>
isRegular</H3>
<PRE>
public final boolean <B>isRegular</B>()</PRE>
<DL>
<DD>Returns whether the attribute values are equally spaced.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>whether the attribute is regular or not</DL>
</DD>
</DL>
<HR>

<A NAME="isAveragable()"><!-- --></A><H3>
isAveragable</H3>
<PRE>
public final boolean <B>isAveragable</B>()</PRE>
<DL>
<DD>Returns whether the attribute can be averaged meaningfully.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>whether the attribute can be averaged or not</DL>
</DD>
</DL>
<HR>

<A NAME="hasZeropoint()"><!-- --></A><H3>
hasZeropoint</H3>
<PRE>
public final boolean <B>hasZeropoint</B>()</PRE>
<DL>
<DD>Returns whether the attribute has a zeropoint and may be
 added meaningfully.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>whether the attribute has a zeropoint or not</DL>
</DD>
</DL>
<HR>

<A NAME="weight()"><!-- --></A><H3>
weight</H3>
<PRE>
public final double <B>weight</B>()</PRE>
<DL>
<DD>Returns the attribute's weight.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the attribute's weight as a double</DL>
</DD>
</DL>
<HR>

<A NAME="getLowerNumericBound()"><!-- --></A><H3>
getLowerNumericBound</H3>
<PRE>
public final double <B>getLowerNumericBound</B>()</PRE>
<DL>
<DD>Returns the lower bound of a numeric attribute.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the lower bound of the specified numeric range</DL>
</DD>
</DL>
<HR>

<A NAME="lowerNumericBoundIsOpen()"><!-- --></A><H3>
lowerNumericBoundIsOpen</H3>
<PRE>
public final boolean <B>lowerNumericBoundIsOpen</B>()</PRE>
<DL>
<DD>Returns whether the lower numeric bound of the attribute is open.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>whether the lower numeric bound is open or not (closed)</DL>
</DD>
</DL>
<HR>

<A NAME="getUpperNumericBound()"><!-- --></A><H3>
getUpperNumericBound</H3>
<PRE>
public final double <B>getUpperNumericBound</B>()</PRE>
<DL>
<DD>Returns the upper bound of a numeric attribute.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the upper bound of the specified numeric range</DL>
</DD>
</DL>
<HR>

<A NAME="upperNumericBoundIsOpen()"><!-- --></A><H3>
upperNumericBoundIsOpen</H3>
<PRE>
public final boolean <B>upperNumericBoundIsOpen</B>()</PRE>
<DL>
<DD>Returns whether the upper numeric bound of the attribute is open.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>whether the upper numeric bound is open or not (closed)</DL>
</DD>
</DL>
<HR>

<A NAME="isInRange(double)"><!-- --></A><H3>
isInRange</H3>
<PRE>
public final boolean <B>isInRange</B>(double&nbsp;value)</PRE>
<DL>
<DD>Determines whether a value lies within the bounds of the attribute.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>whether the value is in range</DL>
</DD>
</DL>
<HR>

<A NAME="main(java.lang.String[])"><!-- --></A><H3>
main</H3>
<PRE>
public static void <B>main</B>(java.lang.String[]&nbsp;ops)</PRE>
<DL>
<DD>Simple main method for testing this class.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
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