drasys.or.prob
Interface DiscreteDistributionI

All Known Implementing Classes:

DiscreteDistribution, EmpiricalDistribution, PoissonDistributionBase, BinomialDistributionBase, PoissonDistribution, BinomialDistribution

public interface DiscreteDistributionI

extends DistributionI

The interface used by algorithms to access discrete distributions. It extends 'DistributionI'.

See Also:

BinomialDistribution, PoissonDistribution, EmpiricalDistribution, DiscreteUniformDistribution

Method Summary
double	cdf(int x)           Returns the value of the cumulative distribution function at 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.
int	getRandomInteger()           Returns a random integer from the discrete distribution.
double	pdf(int x)           Returns the value of the probability distribution function at x;
double	probability(int x1, int x2)           Returns the probability that x >= x1 and x <= x2.

 

Methods inherited from interface drasys.or.prob.DistributionI

cdf, getRandomMatrix, getRandomNumberGenerator, getRandomScaler, getRandomVector, mean, pdf, probability, probability, setElements, setElements, setRandomNumberGenerator, setSeed, std, variance

 

Method Detail

getRandomInteger

public int getRandomInteger()

Returns a random integer from the discrete distribution.

getRandomArray

public int[] getRandomArray(int size)

Returns an array of random numbers from the distribution.

getRandomArray

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

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

pdf

public double pdf(int x)

Returns the value of the probability distribution function at x;

cdf

public double cdf(int x)

Returns the value of the cumulative distribution function at x;

probability

public double probability(int x1,
                          int x2)

Returns the probability that x >= x1 and x <= x2.