weka.associations
Class BinaryItem

java.lang.Object
  weka.associations.Item
      weka.associations.NominalItem
          weka.associations.BinaryItem

All Implemented Interfaces:

Serializable, Comparable<Item>

public class BinaryItem
extends NominalItem
implements Serializable

Class that encapsulates an item whose backing Attribute is binary or unary.

Version:

$Revision; $

Author:

Mark Hall (mhall{[at]}pentaho{[dot]}com)

See Also:

Serialized Form

Constructor Summary

BinaryItem(Attribute att, int valueIndex)
Constructor.

Method Summary

boolean	equals(Object compareTo) Equals.
int	hashCode()

Methods inherited from class weka.associations.NominalItem

getComparisonAsString, getItemValueAsString, getValueIndex, toString

Methods inherited from class weka.associations.Item

compareTo, decreaseFrequency, decreaseFrequency, getAttribute, getFrequency, increaseFrequency, increaseFrequency, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

BinaryItem

public BinaryItem(Attribute att,
                  int valueIndex)
           throws Exception

Constructor.

Parameters:

att - the attribute that backs this item.

valueIndex - the index of the value for this item.

Throws:

Exception - if the backing attribute is not binary or unary.

Method Detail

equals

public boolean equals(Object compareTo)

Equals. Just compares attribute and valueIndex.

Overrides:

equals in class NominalItem

Returns:

true if this BinaryItem is equal to the argument.

hashCode

public int hashCode()

Overrides:

hashCode in class Item