Package ptolemy.actor.lib.colt

Class ColtBinomialSelector

java.lang.Object

ptolemy.kernel.util.NamedObj

ptolemy.kernel.InstantiableNamedObj

ptolemy.kernel.Entity<T>

ptolemy.kernel.ComponentEntity<T>

ptolemy.actor.AtomicActor<TypedIOPort>

ptolemy.actor.TypedAtomicActor

ptolemy.actor.lib.Source

ptolemy.actor.lib.RandomSource

ptolemy.actor.lib.colt.ColtRandomSource

ptolemy.actor.lib.colt.ColtBinomialSelector

All Implemented Interfaces:

java.lang.Cloneable, Actor, Executable, FiringsRecordable, Initializable, TypedActor, Changeable, Debuggable, DebugListener, Derivable, Instantiable, ModelErrorHandler, MoMLExportable, Moveable, Nameable

public class ColtBinomialSelector
extends ColtRandomSource

Assign trials from several populations using a conditional Binomial selection process. For example, if a vector of P populations are presented (as P input channels) and N trials is specified, then this algorithm will distribute the N trials based on the proportions represented in the P populations. This is done by performing a progressively conditional Binomial selection in which n and p change after each trial assignment step. The Binomial trials (n) is decremented after each assignment step to represent the remaining trials, and the new Binomial probability (p) is calculated based on the populations that remain eligible for selection.

A new set of trial assignments is produced for each iteration and will not change until the next iteration. The values that are generated are independent and the expected values of the assignments will have expected values that are representative of the population proportions.

Since:

Ptolemy II 6.0

Version:

$Id$

Author:

Raymond A. Cardillo, Matthew J. Robbins, Contributors: Jason Smith and Brian Hudson

See Also:

ColtBinomial, Binomial

Pt.AcceptedRating:

Red (cxh)

Pt.ProposedRating:

Red (cxh)

Nested Class Summary

Nested classes/interfaces inherited from class ptolemy.kernel.Entity

Entity.ContainedObjectsIterator

Field Summary

Fields

Modifier and Type	Field	Description
TypedIOPort	populations	The populations to select from.
PortParameter	trials	The total number of trials to assign.

Fields inherited from class ptolemy.actor.lib.colt.ColtRandomSource

_randomNumberGenerator, generatorClass

Fields inherited from class ptolemy.actor.lib.RandomSource

_generatorSeed, _needNew, _needNewGenerator, _random, privateSeed, resetOnEachRun, seed

Fields inherited from class ptolemy.actor.lib.Source

_triggered, output, trigger

Fields inherited from class ptolemy.actor.TypedAtomicActor

_typesValid

Fields inherited from class ptolemy.actor.AtomicActor

_actorFiringListeners, _initializables, _notifyingActorFiring, _stopRequested

Fields inherited from class ptolemy.kernel.util.NamedObj

_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS

Fields inherited from interface ptolemy.actor.Executable

COMPLETED, NOT_READY, STOP_ITERATING

Constructor Summary

Constructors

Constructor	Description
ColtBinomialSelector(CompositeEntity container, java.lang.String name)	Construct an actor with the given container and name.

Method Summary

Modifier and Type	Method	Description
protected void	_createdNewRandomNumberGenerator()	Create a new random number generator.
protected void	_generateRandomNumber()	Generate a new random number.
void	fire()	Send the trial distributions to the output.

Methods inherited from class ptolemy.actor.lib.colt.ColtRandomSource

_createGenerator, attributeChanged

Methods inherited from class ptolemy.actor.lib.RandomSource

clone, initialize, postfire

Methods inherited from class ptolemy.actor.lib.Source

_customTypeConstraints, prefire

Methods inherited from class ptolemy.actor.TypedAtomicActor

_containedTypeConstraints, _defaultTypeConstraints, _fireAt, _fireAt, attributeTypeChanged, clone, isBackwardTypeInferenceEnabled, newPort, typeConstraintList, typeConstraints

Methods inherited from class ptolemy.actor.AtomicActor

_actorFiring, _actorFiring, _declareDelayDependency, addActorFiringListener, addInitializable, connectionsChanged, createReceivers, declareDelayDependency, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, isFireFunctional, isStrict, iterate, newReceiver, outputPortList, preinitialize, pruneDependencies, recordFiring, removeActorFiringListener, removeDependency, removeInitializable, setContainer, stop, stopFire, terminate, wrapup

Methods inherited from class ptolemy.kernel.ComponentEntity

_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName

Methods inherited from class ptolemy.kernel.Entity

_addPort, _description, _exportMoMLContents, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName

Methods inherited from class ptolemy.kernel.InstantiableNamedObj

_setParent, exportMoML, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition

Methods inherited from class ptolemy.kernel.util.NamedObj

_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _containedDecorators, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _executeChangeRequests, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, addHierarchyListener, attributeDeleted, attributeList, attributeList, decorators, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getFullName, getModelErrorHandler, getName, getName, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, notifyOfNameChange, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspace

Methods inherited from class java.lang.Object

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

Methods inherited from interface ptolemy.actor.Actor

createReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortList

Methods inherited from interface ptolemy.kernel.util.Derivable

getDerivedLevel, getDerivedList, propagateValue

Methods inherited from interface ptolemy.actor.Executable

isFireFunctional, isStrict, iterate, stop, stopFire, terminate

Methods inherited from interface ptolemy.actor.Initializable

addInitializable, preinitialize, removeInitializable, wrapup

Methods inherited from interface ptolemy.kernel.util.Nameable

description, getContainer, getDisplayName, getFullName, getName, getName, setName

Field Detail

trials

public PortParameter trials

The total number of trials to assign. This PortParameter is of type Int and has an initial default value of 1.

populations

public TypedIOPort populations

The populations to select from. This multiport is of type Long.

Constructor Detail

ColtBinomialSelector

public ColtBinomialSelector(CompositeEntity container,
                            java.lang.String name)
                     throws NameDuplicationException,
                            IllegalActionException

Construct an actor with the given container and name.

Parameters:

container - The container.

name - The name of this actor.

Throws:

IllegalActionException - If the actor cannot be contained by the proposed container.

NameDuplicationException - If the container already has an actor with this name.

Method Detail

fire

public void fire()
          throws IllegalActionException

Send the trial distributions to the output. This set of trial distributions is only changed in the prefire() method, so it will remain constant throughout an iteration.

Specified by:

fire in interface Executable

Overrides:

fire in class RandomSource

Throws:

IllegalActionException - If there is no director.

_createdNewRandomNumberGenerator

protected void _createdNewRandomNumberGenerator()

Create a new random number generator. This method is called after _randomNumberGenerator is changed.

Specified by:

_createdNewRandomNumberGenerator in class ColtRandomSource

_generateRandomNumber

protected void _generateRandomNumber()
                              throws IllegalActionException

Generate a new random number.

Specified by:

_generateRandomNumber in class RandomSource

Throws:

IllegalActionException - If parameter values are incorrect.