drasys.or.prob
Class DiscreteDistribution

java.lang.Object
  |
  +--drasys.or.prob.Distribution
        |
        +--drasys.or.prob.DiscreteDistribution

Direct Known Subclasses:

BinomialDistributionBase, DiscreteUniformDistribution, EmpiricalDistribution, PoissonDistributionBase

public abstract class DiscreteDistribution

extends Distribution

implements DiscreteDistributionI

An abstract class shared by all discrete distributions.

See Also:

BinomialDistribution, PoissonDistribution, EmpiricalDistribution,

References:

The Art of Computer Programming: Seminumerical Algorithms (Vol 2, 3rd Ed)
    Donald Ervin Knuth; Hardcover
Numerical Recipes in C : The Art of Scientific Computing
    William H. Press, et al / Hardcover / Published 1993
Probability and Statistics
    Morris H. Degroot / Hardcover / Published 1986
Mathematical Statistics With Applications
    Dennis D. Wackerly, et al / Hardcover / Published 1996
, Serialized Form

Constructor Summary

DiscreteDistribution()

DiscreteDistribution(long seed)

 

Method Summary
double	cdf(double x)           Returns cdf((int)x);
int[]	getRandomArray(int size)           Returns an array of random numbers from the distribution.
int[][]	getRandomArray(int sizeOfRows, int sizeOfColumns)           Returns a two dimensional array of random integers from the distribution.
double	getRandomScaler()           Returns 'getRandomInteger'.
double	pdf(double x)           Returns pdf((int)x);
double	probability(double x)           Returns probability((int)x).
double	probability(double x1, double x2)           Returns probability((int)x1, (int)x2).

 

Methods inherited from class drasys.or.prob.Distribution

getRandomMatrix, getRandomNumberGenerator, getRandomVector, setElements, setElements, setRandomNumberGenerator, setSeed

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

DiscreteDistribution

public DiscreteDistribution()

DiscreteDistribution

public DiscreteDistribution(long seed)

getRandomScaler

public double getRandomScaler()

Returns 'getRandomInteger'.

getRandomArray

public int[] getRandomArray(int size)

Returns an array of random numbers from the distribution.

Specified by:

getRandomArray in interface DiscreteDistributionI

getRandomArray

public int[][] getRandomArray(int sizeOfRows,
                              int sizeOfColumns)

Returns a two dimensional array of random integers from the distribution.

Specified by:

getRandomArray in interface DiscreteDistributionI

pdf

public double pdf(double x)

Returns pdf((int)x);

cdf

public double cdf(double x)

Returns cdf((int)x);

probability

public double probability(double x)

Returns probability((int)x).

probability

public double probability(double x1,
                          double x2)

Returns probability((int)x1, (int)x2).

Throws:

InvalidArgumentError - if x2 < x1.