Class StandardDeviationCollector

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.function.aggregate.StatisticCollector

org.eclipse.rdf4j.query.algebra.evaluation.function.aggregate.stdev.StandardDeviationCollector

All Implemented Interfaces:

AggregateCollector

@Experimental
public class StandardDeviationCollector
extends StatisticCollector

AggregateCollector that can compute both sample and population standard deviation based on input of numeric Literals.

Author:

Tomas Kovachev t.kovachev1996@gmail.com

Field Summary

Fields inherited from class StatisticCollector

population, statistics, typeError, ZERO

Constructor Summary

Constructors

Constructor	Description
StandardDeviationCollector(boolean population)

Method Summary

Modifier and Type	Method	Description
protected Literal	computeValue()

Methods inherited from class StatisticCollector

addValue, getFinalValue, hasError, setTypeError

Methods inherited from class Object

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

Constructor Details

StandardDeviationCollector

public StandardDeviationCollector(boolean population)

Method Details

computeValue

protected Literal computeValue()

Specified by:

computeValue in class StatisticCollector