broadwick.statistics.distributions

Interface DiscreteDistribution

All Known Implementing Classes:

HypergeometricDistribution

public interface DiscreteDistribution

Interface defining all continuous distribution classes.

Method Summary

Modifier and Type	Method and Description
double	getMean() Get the numerical value of the mean of this distribution.
double	getVariance() Get the numerical value of the variance of this distribution.
int	sample() Generate a random value sampled from this distribution.

Method Detail

sample

int sample()

Generate a random value sampled from this distribution.

Returns:

the sampled value from the distribution.

getMean

double getMean()

Get the numerical value of the mean of this distribution.

Returns:

the mean or Double.NaN if it is not defined

getVariance

double getVariance()

Get the numerical value of the variance of this distribution.

Returns:

the variance (possibly Double.POSITIVE_INFINITY or Double.NaN if it is not defined)