bayesnet.jayes.factor

Class AbstractFactor

java.lang.Object

bayesnet.jayes.factor.AbstractFactor

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

DenseFactor, SparseFactor

public abstract class AbstractFactor
extends java.lang.Object
implements java.lang.Cloneable

Constructor Summary

Constructors

Constructor and Description
AbstractFactor()

Method Summary

Modifier and Type	Method and Description
AbstractFactor	clone()
abstract void	copyValues(IArrayWrapper arrayWrapper)
abstract void	fill(double d)
int[]	getDimensionIDs()
int[]	getDimensions()
abstract int	getOverhead()
double	getValue(int i)
IArrayWrapper	getValues()
boolean	isLogScale()
double[]	marginalizeAllBut(int sumDimensionID) Deprecated.
void	multiplyCompatible(AbstractFactor compatible) multiply the factors.
void	multiplyCompatibleToLog(AbstractFactor factor)
void	multiplyPrepared(IArrayWrapper compatibleValues, int[] positions)
abstract int[]	prepareMultiplication(AbstractFactor compatible)
void	resetSelections()
void	select(int dimensionID, int index)
void	setDimensionIDs(int... ids) tells the Factor which variables the dimensions correspond to.
void	setDimensions(int... dimensions)
void	setLogScale(boolean isLogScale)
void	setValues(IArrayWrapper values)
void	sumPrepared(IArrayWrapper compatibleFactorValues, int[] preparedOperation)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractFactor

public AbstractFactor()

Method Detail

copyValues

public abstract void copyValues(IArrayWrapper arrayWrapper)

prepareMultiplication

public abstract int[] prepareMultiplication(AbstractFactor compatible)

fill

public abstract void fill(double d)

setValues

public void setValues(IArrayWrapper values)

getValues

public IArrayWrapper getValues()

getValue

public double getValue(int i)

setDimensions

public void setDimensions(int... dimensions)

getDimensions

public int[] getDimensions()

setDimensionIDs

public void setDimensionIDs(int... ids)

tells the Factor which variables the dimensions correspond to. Uniqueness and consistency of size is assumed.

getDimensionIDs

public int[] getDimensionIDs()

select

public void select(int dimensionID,
                   int index)

resetSelections

public void resetSelections()

setLogScale

public void setLogScale(boolean isLogScale)

isLogScale

public boolean isLogScale()

marginalizeAllBut

@Deprecated
public double[] marginalizeAllBut(int sumDimensionID)

Deprecated.

marginalizes out all variables except the one with id sumDimensionID

Parameters:

sumDimensionID - -1 for last dimension (default)

Returns:

multiplyCompatible

public void multiplyCompatible(AbstractFactor compatible)

multiply the factors. Only compatible factors are allowed, meaning ones that have a subset of the variables of this factor (assume consistent Dimension ID / size pairs)

Parameters:

compatible -

multiplyPrepared

public void multiplyPrepared(IArrayWrapper compatibleValues,
                             int[] positions)

sumPrepared

public void sumPrepared(IArrayWrapper compatibleFactorValues,
                        int[] preparedOperation)

clone

public AbstractFactor clone()

Overrides:

clone in class java.lang.Object

multiplyCompatibleToLog

public void multiplyCompatibleToLog(AbstractFactor factor)

getOverhead

public abstract int getOverhead()

Returns:

approximated memory requirements on top of the value array