ve
Class FactorSumOut

java.lang.Object
  |
  +--ve.Factor
        |
        +--ve.FactorStored
              |
              +--ve.FactorSumOut

public class FactorSumOut

extends FactorStored

This the the class of factors that are created by summing out a set of variables from another factor. Copyright 2001, David Poole. All rights reserved.

Fields inherited from class ve.FactorStored

factorValues

Fields inherited from class ve.Factor

BY_MULTIPLYING, BY_SUM_OUT, BY_V_ELIM, BY_V_OBS, FROM_NODE, howCreated

Constructor Summary

FactorSumOut(Factor f1, Variable[] vars)
constructs a factor with the given variables.

Method Summary

static Variable[]

setDiff(Variable[] vars1, Variable[] vars2) returns the array representing the set difference of the variables.

Methods inherited from class ve.FactorStored

iterator

Methods inherited from class ve.Factor

allOnes, contains, display, getName, getVariables, isRedundant, print, print, printVariables, size, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

FactorSumOut

public FactorSumOut(Factor f1,
                    Variable[] vars)

constructs a factor with the given variables.

Parameters:

f1 - the original factor.

vars - the list of variables to be summed out. This assumes that vars is a subset of f1.getVariables().

Method Detail

setDiff

public static Variable[] setDiff(Variable[] vars1,
                                 Variable[] vars2)

returns the array representing the set difference of the variables.

Parameters:

vars1 - an ordered list of variables.

vars2 - an ordered list of variables.

Returns:

the elements of vars1 not in vars2.