edu.uah.math.distributions
Class PoissonDistribution

java.lang.Object
  |
  +--edu.uah.math.distributions.Distribution
        |
        +--edu.uah.math.distributions.PoissonDistribution

public class PoissonDistribution

extends Distribution

The Poisson distribution with a specified rate parameter

Field Summary

Fields inherited from class edu.uah.math.distributions.Distribution

CONTINUOUS, DISCRETE, MIXED

Constructor Summary

PoissonDistribution()
Default constructor: creates a new Poisson distribtiton with parameter 1

PoissonDistribution(double r)
Default constructor: creates a new Poisson distribution with a given parameter value

Method Summary

double	getCDF(double x) Cumulative distribution function
double	getDensity(double x) Density function
double	getMaxDensity() Maximum value of the getDensity function
double	getMean() Mean
double	getParameter() Parameter
double	getVariance() Variance
void	setParameter(double r) Sets the parameter
double	simulate() Simulate a value

Methods inherited from class edu.uah.math.distributions.Distribution

betaCDF, comb, factorial, gamma, gammaCDF, getDomain, getFailureRate, getMedian, getQuantile, getSD, getType, logGamma, perm, setParameters

Methods inherited from class java.lang.Object

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

Constructor Detail

PoissonDistribution

public PoissonDistribution(double r)

Default constructor: creates a new Poisson distribution with a given parameter value

PoissonDistribution

public PoissonDistribution()

Default constructor: creates a new Poisson distribtiton with parameter 1

Method Detail

setParameter

public void setParameter(double r)

Sets the parameter

getParameter

public double getParameter()

Parameter

getDensity

public double getDensity(double x)

Density function

Specified by:

getDensity in class Distribution

getMaxDensity

public double getMaxDensity()

Maximum value of the getDensity function

Overrides:

getMaxDensity in class Distribution

getCDF

public double getCDF(double x)

Cumulative distribution function

Overrides:

getCDF in class Distribution

getMean

public double getMean()

Mean

Overrides:

getMean in class Distribution

getVariance

public double getVariance()

Variance

Overrides:

getVariance in class Distribution

simulate

public double simulate()

Simulate a value

Overrides:

simulate in class Distribution