Module org.bzdev.math

Package org.bzdev.math.rv

Class BinomialDoubleRV

java.lang.Object

org.bzdev.math.rv.RandomVariable<Double>

org.bzdev.math.rv.DoubleRandomVariable

org.bzdev.math.rv.BinomialDoubleRV

All Implemented Interfaces:

Cloneable, RandomVariableOps<Double>

public class BinomialDoubleRV
extends DoubleRandomVariable

Double-valued random variable that generates a binomial distribution for n tries. Each number in the sequence represents the number of tries that succeeded out of n tries. The random numbers that are returned will be rounded to the nearest integral values as long as they are small enough so that StrictMath.rint((double)n) = n where n is a long integer.

Constructor Summary

Constructors

Constructor	Description
BinomialDoubleRV(double prob, double n)	Constructor.

Method Summary

Modifier and Type	Method	Description
double	getN()	Get the number of tries for this random variable.
double	getProb()	Get the probability that a try succeeds
Double	next()	Get the next value for a random variable.

Methods inherited from class org.bzdev.math.rv.DoubleRandomVariable

getMaximum, getMaximumClosed, getMinimum, getMinimumClosed, parallelStream, parallelStream, rangeTestFailed, rangeTestNeeded, setMaximum, setMinimum, setRequiredMaximum, setRequiredMinimum, spliterator, spliterator, stream, stream, tightenMaximum, tightenMaximumS, tightenMinimum, tightenMinimumS

Methods inherited from class org.bzdev.math.rv.RandomVariable

clone, getCharacteristics

Methods inherited from class java.lang.Object

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

Constructor Details

BinomialDoubleRV

public BinomialDoubleRV(double prob,
 double n)
                 throws IllegalArgumentException

Constructor. The argument n will be rounded to the nearest integral value.

Parameters:

prob - the probability that a try succeeds.

n - the number of tries (must be positive)

Throws:

IllegalArgumentException

Method Details

getProb

public double getProb()

Get the probability that a try succeeds

Returns:

the probability that a a try succeeds

getN

public double getN()

Get the number of tries for this random variable.

Returns:

the number of tries

next

public Double next()

Description copied from class: RandomVariable

Get the next value for a random variable. In general, each value will be independent of the last.

Specified by:

next in interface RandomVariableOps<Double>

Specified by:

next in class RandomVariable<Double>

Returns:

the next value