Package org.eclipse.rdf4j.query.algebra.evaluation.function.aggregate.variance

Class VarianceCollector

java.lang.Object

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

org.eclipse.rdf4j.query.algebra.evaluation.function.aggregate.variance.VarianceCollector

All Implemented Interfaces:

AggregateCollector

@Experimental
public class VarianceCollector
extends StatisticCollector

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

Author:

Tomas Kovachev t.kovachev1996@gmail.com

Field Summary

Fields inherited from class org.eclipse.rdf4j.query.algebra.evaluation.function.aggregate.StatisticCollector

population, statistics, typeError, ZERO

Constructor Summary

Constructors

Constructor	Description
VarianceCollector(boolean population)

Method Summary

Modifier and Type	Method	Description
protected Literal	computeValue()

Methods inherited from class org.eclipse.rdf4j.query.algebra.evaluation.function.aggregate.StatisticCollector

addValue, getFinalValue, hasError, setTypeError

Methods inherited from class java.lang.Object

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

Constructor Details

VarianceCollector

public VarianceCollector(boolean population)

Method Details

computeValue

protected Literal computeValue()

Specified by:

computeValue in class StatisticCollector