weka.classifiers.bayes
Class ParentSet

java.lang.Object
  weka.classifiers.bayes.ParentSet

All Implemented Interfaces:

java.io.Serializable

public class ParentSet

extends java.lang.Object

implements java.io.Serializable

Helper class for Bayes Network classifiers. Provides datastructures to represent a set of parents in a graph.

Version:

$Revision: 1.5 $

Author:

Remco Bouckaert (rrb@xm.co.nz)

See Also:

Serialized Form

Field Summary

private int	m_nCardinalityOfParents Holds cardinality of parents (= number of instantiations the parents can take)
private int	m_nNrOfParents Holds number of parents
private int[]	m_nParents Holds indexes of parents

Constructor Summary

ParentSet()
default constructor

ParentSet(int nMaxNrOfParents)
constructor

ParentSet(ParentSet other)
copy constructor

Method Summary

void	AddParent(int nParent, Instances _Instances) Add parent to parent set and update internals (specifically the cardinality of the parent set)
void	DeleteLastParent(Instances _Instances) Delete last added parent from parent set and update internals (specifically the cardinality of the parent set)
int	GetCardinalityOfParents() returns cardinality of parents
int	GetNrOfParents() returns number of parents
int	GetParent(int iParent) returns index parent of parent specified by index
void	MaxParentSetSize(int nSize) reserve memory for parent set

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

m_nParents

private int[] m_nParents

Holds indexes of parents

m_nNrOfParents

private int m_nNrOfParents

Holds number of parents

m_nCardinalityOfParents

private int m_nCardinalityOfParents

Holds cardinality of parents (= number of instantiations the parents can take)

Constructor Detail

ParentSet

public ParentSet()

default constructor

ParentSet

public ParentSet(int nMaxNrOfParents)

constructor

Parameters:

nMaxNrOfParents - upper bound on nr of parents

ParentSet

public ParentSet(ParentSet other)

copy constructor

Parameters:

other - other parent set

Method Detail

GetParent

public int GetParent(int iParent)

returns index parent of parent specified by index

Parameters:

iParent - Index of parent

GetNrOfParents

public int GetNrOfParents()

returns number of parents

GetCardinalityOfParents

public int GetCardinalityOfParents()

returns cardinality of parents

MaxParentSetSize

public void MaxParentSetSize(int nSize)

reserve memory for parent set

Parameters:

nSize - maximum size of parent set to reserver memory for

AddParent

public void AddParent(int nParent,
                      Instances _Instances)

Add parent to parent set and update internals (specifically the cardinality of the parent set)

Parameters:

nParent - parent to add

_Instances - used for updating the internals

DeleteLastParent

public void DeleteLastParent(Instances _Instances)

Delete last added parent from parent set and update internals (specifically the cardinality of the parent set)

Parameters:

_Instances - used for updating the internals