Package org.oristool.math.function

Class Erlang

java.lang.Object

org.oristool.math.function.GEN

org.oristool.math.function.Erlang

All Implemented Interfaces:

Function, PartitionedFunction

public class Erlang
extends GEN

The Erlang PDF.

Constructor Summary

Constructors

Constructor	Description
Erlang(Variable x, int k, BigDecimal lambda)	Builds the function lambda^k x^(k-1) e^(-lambda x) / (k-1)! over [0, +infty).
Erlang(Erlang erlang)	Builds a copy of the input Erlang.

Method Summary

Modifier and Type	Method	Description
BigDecimal	getLambda()	Returns the rate.
int	getShape()	Returns the shape parameter.
Variable	getVariable()	Returns the variable name.

Methods inherited from class org.oristool.math.function.GEN

cartesianProduct, computeNonIntersectingZones, conditionToBound, conditionToMax, conditionToMin, constantShift, constantShift, equals, getDensity, getDETInstance, getDomain, getSubZonesInducted, hashCode, integrateOverDomain, newDeterministic, newExpolynomial, newHyperExp, newHypoExp, newShiftedExp, newTruncatedExp, newUniform, normalize, project, shiftAndProject, substitute, substitute, substituteAndShift, toMathematicaString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.oristool.math.function.Function

getFunctions

Methods inherited from interface org.oristool.math.function.PartitionedFunction

getDensities, getDomains, getDomainsEFT, getDomainsLFT

Constructor Details

Erlang

public Erlang(Variable x,
 int k,
 BigDecimal lambda)

Builds the function lambda^k x^(k-1) e^(-lambda x) / (k-1)! over [0, +infty).

Parameters:

x - variable

k - shape

lambda - rate

Erlang

public Erlang(Erlang erlang)

Builds a copy of the input Erlang.

Parameters:

erlang - input Erlang

Method Details

getShape

public int getShape()

Returns the shape parameter.

Returns:

shape parameter

getLambda

public BigDecimal getLambda()

Returns the rate.

Returns:

rate parameter

getVariable

public Variable getVariable()

Returns the variable name.

Returns:

variable name