BinaryItem

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

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Item>
```
public class BinaryItem
extends NominalItem
implements java.io.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
  
  Constructors
  Constructor Description
  
  BinaryItem(Attribute att, int valueIndex)
  Constructor.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  boolean equals(java.lang.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 java.lang.Exception
```
    Constructor.
    
    Parameters:
    
    att - the attribute that backs this item.
    
    valueIndex - the index of the value for this item.
    
    Throws:
    
    java.lang.Exception - if the backing attribute is not binary or unary.
- Method Detail
  - equals
```
public boolean equals(java.lang.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