org.conqat.lib.commons.math

Class PercentileAggregator

java.lang.Object

org.conqat.lib.commons.math.PercentileAggregator

All Implemented Interfaces:

IAggregator

public class PercentileAggregator
extends java.lang.Object
implements IAggregator

Calculates a given percentile. E.g. PercentileAggregator(50) calculates the median

Constructor Summary

Constructors

Constructor and Description
PercentileAggregator(double percentile) Constructor.

Method Summary

Modifier and Type	Method and Description
double	aggregate(java.util.Collection<? extends java.lang.Number> values) Aggregates by finding the median.
double	getNeutralElement() Returns Double.NaN.

Methods inherited from class java.lang.Object

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

Constructor Detail

PercentileAggregator

public PercentileAggregator(double percentile)

Constructor.

Method Detail

aggregate

public double aggregate(java.util.Collection<? extends java.lang.Number> values)

Aggregates by finding the median.

Specified by:

aggregate in interface IAggregator

Returns:

Double.NaN for empty input collection

getNeutralElement

public double getNeutralElement()

Returns Double.NaN.

Specified by:

getNeutralElement in interface IAggregator