edu.tum.cs.commons.math
Class SumAggregator

java.lang.Object
  edu.tum.cs.commons.math.PairwiseAggregatorBase
      edu.tum.cs.commons.math.SumAggregator

All Implemented Interfaces:

IAggregator

public class SumAggregator
extends PairwiseAggregatorBase

Sum aggregator.

Version:

$Rev: 28099 $

Author:

deissenb, $Author: hummelb $

Rating:

GREEN Hash: 2BC7AD863CFA78522BE30785E9043E5F

Constructor Summary

SumAggregator()

Method Summary

protected double	aggregate(double aggregate, double value) Calculate aggregate of two values.
double	getNeutralElement() Returns zero.

Methods inherited from class edu.tum.cs.commons.math.PairwiseAggregatorBase

aggregate

Methods inherited from class java.lang.Object

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

Constructor Detail

SumAggregator

public SumAggregator()

Method Detail

getNeutralElement

public double getNeutralElement()

Returns zero.

aggregate

protected double aggregate(double aggregate,
                           double value)

Calculate aggregate of two values.

Specified by:

aggregate in class PairwiseAggregatorBase

Parameters:

aggregate - the value that has been aggregated by previous pairwise aggregations

value - the new value