repicea.stats.distributions.utility

Class NegativeBinomialUtility

java.lang.Object

repicea.stats.distributions.utility.NegativeBinomialUtility

public class NegativeBinomialUtility
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
NegativeBinomialUtility()

Method Summary

Modifier and Type	Method and Description
static double	getMassProbability(int y, double mean, double dispersion) This method returns the mass probability from a negative binomial distribution for a particular integer.

Methods inherited from class java.lang.Object

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

Constructor Detail

NegativeBinomialUtility

public NegativeBinomialUtility()

Method Detail

getMassProbability

public static double getMassProbability(int y,
                                        double mean,
                                        double dispersion)

This method returns the mass probability from a negative binomial distribution for a particular integer. It follows the SAS parameterization.

Parameters:

y - the count (must be equal to or greater than 0)

mean - the mean of the distribution

dispersion - the dispersion parameter

Returns:

a mass probability