Package edu.cmu.tetrad.util

Class CombinationIterator

java.lang.Object

edu.cmu.tetrad.util.CombinationIterator

All Implemented Interfaces:

Iterator

public class CombinationIterator
extends Object
implements Iterator

Iterates through all the posible combinations for a set of variables (each with a different number of possible values). For example, if the number of values for each variable is two, this would iterate through a truth table. Not to be confused with a combinatorial (taking n values from m possible values).

Author:

Juan Casares

Constructor Summary

Constructors

Constructor	Description
CombinationIterator(int[] maxValues)	Creates a combination set for a set of variables with the given number of maxValues

Method Summary

Modifier and Type	Method	Description
boolean	hasNext()
int[]	next()
void	remove()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Details

CombinationIterator

public CombinationIterator(int[] maxValues)

Creates a combination set for a set of variables with the given number of maxValues

Parameters:

maxValues - An int array consisting of the maximum values of each variable, in order.

Method Details

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator

Returns:

true iff there is still a combination that has not been returned by the next() method.

next

public int[] next()

Specified by:

next in interface Iterator

Returns:

an int[] array with the next combination.

remove

public void remove()

Specified by:

remove in interface Iterator