Package org.djutils.stats.summarizers.event

Class EventBasedTally

java.lang.Object

org.djutils.stats.summarizers.Tally

org.djutils.stats.summarizers.event.EventBasedTally

All Implemented Interfaces:

EventListener, EventListener, EventProducer, Statistic, TallyStatistic

public class EventBasedTally
extends Tally
implements EventProducer, EventListener

The EventBasedTally class registers a series of values and provides mean, standard deviation, etc. of the registered values. It embeds an EventProducer so it can keep listeners informed about new observations, and it listens to external events to be able to receive observations, in addition to the register(...) method.

Copyright (c) 2002-2025 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved. See for project information https://simulation.tudelft.nl. The DSOL project is distributed under a three-clause BSD-style license, which can be found at https://simulation.tudelft.nl/dsol/3.0/license.html.

Author:

Alexander Verbraeck, Peter Jacobs , Peter Knoppers

Field Summary

Fields inherited from class org.djutils.stats.summarizers.Tally

semaphore

Fields inherited from interface org.djutils.event.EventProducer

FIRST_POSITION, LAST_POSITION

Constructor Summary

Constructors

Constructor	Description
EventBasedTally(String description)	Convenience constructor that uses a NoStorageAccumulator to estimate quantiles.
EventBasedTally(String description, EventProducer eventProducer)	Construct a new EventBasedCounter with a specific EventProducer, e.g. a remote one.
EventBasedTally(String description, QuantileAccumulator quantileAccumulator)	Constructs a new EventBasedTally.
EventBasedTally(String description, QuantileAccumulator quantileAccumulator, EventProducer eventProducer)	Construct a new EventBasedCounter with a specific EventProducer, e.g. a remote one.

Method Summary

Modifier and Type	Method	Description
protected void	fireEvents()	Method that can be overridden to fire own events or additional events when registering an observation.
EventListenerMap	getEventListenerMap()
void	initialize()	Initialize the statistic.
void	notify(Event event)
double	register(double value)	Process one observed value.
String	toString()

Methods inherited from class org.djutils.stats.summarizers.Tally

getConfidenceInterval, getConfidenceInterval, getCumulativeProbability, getDescription, getMax, getMin, getN, getPopulationExcessKurtosis, getPopulationKurtosis, getPopulationMean, getPopulationSkewness, getPopulationStDev, getPopulationVariance, getQuantile, getSampleExcessKurtosis, getSampleKurtosis, getSampleMean, getSampleSkewness, getSampleStDev, getSampleVariance, getSum, register, reportFooter, reportHeader, reportLine, setDescription

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.djutils.event.EventProducer

addListener, addListener, addListener, addListener, fireEvent, fireEvent, fireEvent, fireTimedEvent, fireTimedEvent, fireTimedEvent, fireUnverifiedEvent, fireUnverifiedEvent, fireUnverifiedTimedEvent, fireUnverifiedTimedEvent, getEventTypesWithListeners, getListenerReferences, hasListeners, numberOfListeners, removeAllListeners, removeAllListeners, removeListener

Methods inherited from interface org.djutils.stats.summarizers.Statistic

formatFixed

Constructor Details

EventBasedTally

public EventBasedTally(String description,
 QuantileAccumulator quantileAccumulator)

Constructs a new EventBasedTally.

Parameters:

description - the description of this tally

quantileAccumulator - the input series accumulator that can approximate or compute quantiles.

EventBasedTally

public EventBasedTally(String description)

Convenience constructor that uses a NoStorageAccumulator to estimate quantiles.

Parameters:

description - the description of this tally

EventBasedTally

public EventBasedTally(String description,
 EventProducer eventProducer)

Construct a new EventBasedCounter with a specific EventProducer, e.g. a remote one. The Tally uses uses a NoStorageAccumulator to estimate quantiles.

Parameters:

description - the description for this counter

eventProducer - the EventProducer to embed and use in this statistic

EventBasedTally

public EventBasedTally(String description,
 QuantileAccumulator quantileAccumulator,
 EventProducer eventProducer)

Construct a new EventBasedCounter with a specific EventProducer, e.g. a remote one.

Parameters:

description - the description for this counter

quantileAccumulator - the input series accumulator that can approximate or compute quantiles.

eventProducer - the EventProducer to embed and use in this statistic

Method Details

getEventListenerMap

public EventListenerMap getEventListenerMap()

Specified by:

getEventListenerMap in interface EventProducer

initialize

public void initialize()

Description copied from interface: Statistic

Initialize the statistic.

Specified by:

initialize in interface Statistic

Overrides:

initialize in class Tally

notify

public void notify(Event event)

Specified by:

notify in interface EventListener

register

public double register(double value)

Description copied from class: Tally

Process one observed value.

Overrides:

register in class Tally

Parameters:

value - the value to process

Returns:

the value

fireEvents

protected void fireEvents()

Method that can be overridden to fire own events or additional events when registering an observation.

toString

public String toString()

Overrides:

toString in class Tally