bbn
Class Node

java.lang.Object
  |
  +--bbn.Node

public class Node

extends java.lang.Object

Title: Node.java Description: Core Bayesian Network class Copyright: Copyright (c) 2001 Company: KSU / KDD

Field Summary

int	pathLength

Constructor Summary

Node(BBN newNetwork)
Node constructs the node and initializes the values.

Method Summary

void	addChild(Node child) addChild adds a child to the node.
void	addParent(Node parent) addParent adds a parent to the node.
void	addProbability(java.lang.Double newProbability) addProbability adds a new probability to the probability vector.
void	addValue(java.lang.String value) addValue adds a new value to the set of values the node can have.
Node	copy(BBN newNetwork) Creates a copy of the node.
void	empty_parentlist()
int	getArity() getArity returns the arity (number of possible values) of the node.
Node	getChild(int index) getChild returns the child at location index.
java.util.Vector	getChildren() getChildren returns the vector of Node objects containing the node's children
java.util.Vector	getChildrenNames() getChildrenNames returns the vector of Strings containing the node's children's names.
java.lang.String	getInstant() Deprecated. The whole point of NodeManager is to handle instantiations. It handles it with integers rather than strings, which makes projects run much faster.
java.lang.String	getName() getName returns the name of the node.
BBN	getNetwork() getNetwork returns the host bayesian network.
Node	getParent(int index) getParent returns the parent at location index.
java.lang.String	getParentName(int index)
java.util.Vector	getParentNames()
java.util.Vector	getParents() getParents returns the vector of Node objects containing the node's parents
java.util.Vector	getProbabilities() getProbabilities returns the vector of Node objects containing the node's probabilities
double	getProbability(int index) getProbability returns the probability at location index.
double	getProbability(int column, int row)
int	getStateIndex(java.lang.String string) getStateIndex matches a given string to the location in the possible value list.
java.lang.String	getStateName(int index) getStateName will return the requested state index's name that was given in the network file.
java.util.Vector	getStateNames() getStateNames will return all possible state names.
java.util.Vector	getTable(int splitTableIndex, BBN nodesGroup)
java.lang.Double	getValue(int index)
java.util.Vector	getValues() getValues returns the vector of all possible instantiations of the node
double	getX() getX returns the X coordinate.
double	getY() getY returns the Y coordinate.
boolean	isProcessed()
void	labelProcessed()
int	numChildren() numChildren returns the number of children this node has
int	numParents() numParents returns the number of parents this node has.
void	print() print prints the name of the node.
void	printStateNames()
void	printVerbose()
void	setChildrenList(java.util.Vector children)
void	setInstant(java.lang.String instant) Deprecated. The whole point of NodeManager is to handle instantiations. It handles it with integers rather than strings, which makes projects run much faster.
void	setName(java.lang.String name) setName sets the name of the node.
void	setParentList(java.util.Vector parents)
void	setParentNames(java.util.Vector names)
void	setPossibleValues(java.util.Vector values)
void	setProbabilities(java.util.Vector newProbabilities) setProbabilities will set the probability vector to the passed vector.
void	setProbability(int index, java.lang.Double value)
void	setValue(int index, java.lang.Double value)
void	setX(double x) setX sets the X coordinate
void	setY(double y) setY sets the Y coordinate.

Methods inherited from class java.lang.Object

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

Field Detail

pathLength

public int pathLength

Constructor Detail

Node

public Node(BBN newNetwork)

Node constructs the node and initializes the values.

Parameters:

newNetwork - - the node's parent Bayesian Network.

Method Detail

copy

public Node copy(BBN newNetwork)

Creates a copy of the node. Note that the parents and children are not cloned; they are simply re-referenced. If you want a distinct set, you will need to copy all of the parents and all of the children. Lucky for you, BBN.copy() does this for you; the Node.copy(BBN) should only be called if you intend to manipulate the probability table. Note that neither the parents nor the children know about this copy. It is recommended to use BBN.copy over Node.copy.

Parameters:

newNetwork - - the network this copy will belong to

Returns:

Node - the new copy.

See Also:

BBN.copy

getArity

public int getArity()

getArity returns the arity (number of possible values) of the node.

Returns:

int - the arity of the network

setPossibleValues

public void setPossibleValues(java.util.Vector values)

setChildrenList

public void setChildrenList(java.util.Vector children)

setParentList

public void setParentList(java.util.Vector parents)

setParentNames

public void setParentNames(java.util.Vector names)

setProbability

public void setProbability(int index,
                           java.lang.Double value)

setValue

public void setValue(int index,
                     java.lang.Double value)

getValue

public java.lang.Double getValue(int index)

addProbability

public void addProbability(java.lang.Double newProbability)

addProbability adds a new probability to the probability vector.

Parameters:

newProbability - - the new probability to add.

getStateIndex

public int getStateIndex(java.lang.String string)

getStateIndex matches a given string to the location in the possible value list.

Parameters:

string - - the string being matched

Returns:

int - the index of the string.

printStateNames

public void printStateNames()

print

public void print()

print prints the name of the node.

setInstant

public void setInstant(java.lang.String instant)

Deprecated. The whole point of NodeManager is to handle instantiations. It handles it with integers rather than strings, which makes projects run much faster.

setInstant will set the current instantiation to the passed string.

Parameters:

instant - - the new instantiation

getInstant

public java.lang.String getInstant()

Deprecated. The whole point of NodeManager is to handle instantiations. It handles it with integers rather than strings, which makes projects run much faster.

getInstant will return the current instantiation of the node

Returns:

String - the current instantiation

setProbabilities

public void setProbabilities(java.util.Vector newProbabilities)

setProbabilities will set the probability vector to the passed vector.

Parameters:

newProbabilities - - the new probabilities vector

getStateName

public java.lang.String getStateName(int index)

getStateName will return the requested state index's name that was given in the network file.

Parameters:

index - - the index of the state being requested.

Returns:

String - the name of the state

getStateNames

public java.util.Vector getStateNames()

getStateNames will return all possible state names.

Returns:

Vector - the vector of strings pertaining to the possible values.

getNetwork

public BBN getNetwork()

getNetwork returns the host bayesian network.

Returns:

BBN - the network.

getParent

public Node getParent(int index)

getParent returns the parent at location index. Throws BBNE_OutOfBounds exception if index is out of bounds.

Parameters:

index - - the requested parent index

Returns:

Node - the parent corresponding to the index

getParentName

public java.lang.String getParentName(int index)

getParents

public java.util.Vector getParents()

getParents returns the vector of Node objects containing the node's parents

Returns:

Vector - the parent vector

getParentNames

public java.util.Vector getParentNames()

empty_parentlist

public void empty_parentlist()

getChild

public Node getChild(int index)

getChild returns the child at location index. Throws BBNE_OutOfBounds exception if index is out of bounds.

Parameters:

index - - the requested child index

Returns:

Node - the child corresponding to the index

getChildren

public java.util.Vector getChildren()

getChildren returns the vector of Node objects containing the node's children

Returns:

Vector - the children vector

getChildrenNames

public java.util.Vector getChildrenNames()

getChildrenNames returns the vector of Strings containing the node's children's names. Please be aware that getChildren() is much more useful.

Returns:

Vector - the vector of all children names

getProbability

public double getProbability(int index)

getProbability returns the probability at location index. Throws BBNE_OutOfBounds exception if index is out of bounds.

Parameters:

index - - the requested probability index

Returns:

double - the probability corresponding to the index

getProbability

public double getProbability(int column,
                             int row)

getProbabilities

public java.util.Vector getProbabilities()

getProbabilities returns the vector of Node objects containing the node's probabilities

Returns:

Vector - the probabilities vector

getValues

public java.util.Vector getValues()

getValues returns the vector of all possible instantiations of the node

Returns:

Vector - the vector of all instantiations

getName

public java.lang.String getName()

getName returns the name of the node.

Returns:

String - the name of the node.

setName

public void setName(java.lang.String name)

setName sets the name of the node.

Parameters:

name - - the new name.

setX

public void setX(double x)

setX sets the X coordinate

Parameters:

x - - the X coordinate

getX

public double getX()

getX returns the X coordinate.

Returns:

x - the x coordinate.

addValue

public void addValue(java.lang.String value)

addValue adds a new value to the set of values the node can have.

Parameters:

value - - the new value

addChild

public void addChild(Node child)

addChild adds a child to the node. calls addParent on the child

Parameters:

child - - the child being added to the node.

addParent

public void addParent(Node parent)

addParent adds a parent to the node. Caution - do not use this function in conjuction with addChild because addChild does this for you automatically.

setY

public void setY(double y)

setY sets the Y coordinate.

Parameters:

y - - the y coordinate.

getY

public double getY()

getY returns the Y coordinate.

Returns:

y - the y coordinate.

numParents

public int numParents()

numParents returns the number of parents this node has.

Returns:

int - the number of parents.

numChildren

public int numChildren()

numChildren returns the number of children this node has

Returns:

int - the number of children.

labelProcessed

public void labelProcessed()

isProcessed

public boolean isProcessed()

getTable

public java.util.Vector getTable(int splitTableIndex,
                                 BBN nodesGroup)

printVerbose

public void printVerbose()