edu.tum.cs.commons.math
Interface IAggregator

All Known Implementing Classes:

MaxAggregator, MeanAggregator, MedianAggregator, MinAggregator, PairwiseAggregatorBase, SumAggregator

public interface IAggregator

Aggregtor interface.

Version:

$Rev: 28099 $

Author:

deissenb, $Author: hummelb $

Rating:

GREEN Hash: 07B1BC375A02AAB32E730C81ACD72882

Method Summary

double	aggregate(Collection<? extends Number> values) Aggregate collection of values to one value.
double	getNeutralElement() Get the neutral element of this aggregation operator.

Method Detail

aggregate

double aggregate(Collection<? extends Number> values)

Aggregate collection of values to one value. Implementing classes may return non-normal numbers, e.g. Double.NaN for the median of an empty collections.

getNeutralElement

double getNeutralElement()

Get the neutral element of this aggregation operator. This may return non-normal numbers, e.g. Double.NaN or Double.POSITIVE_INFINITY .