DiscreteDistribution (Commons Math 2.2 API)

All Superinterfaces:

Distribution

All Known Subinterfaces:

BinomialDistribution, HypergeometricDistribution, IntegerDistribution, PascalDistribution, PoissonDistribution, ZipfDistribution

All Known Implementing Classes:

AbstractIntegerDistribution, BinomialDistributionImpl, HypergeometricDistributionImpl, PascalDistributionImpl, PoissonDistributionImpl, ZipfDistributionImpl
```
public interface DiscreteDistribution
extends Distribution
```
Base interface for discrete distributions.

Version:

$Revision: 811685 $ $Date: 2009-09-05 19:36:48 +0200 (sam. 05 sept. 2009) $

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double`	`probability(double x)`	For a random variable X whose values are distributed according to this distribution, this method returns P(X = x).

Methods inherited from interface org.apache.commons.math.distribution.Distribution
cumulativeProbability, cumulativeProbability

- Method Detail
  - probability
```
double probability(double x)
```
    For a random variable X whose values are distributed according to this distribution, this method returns P(X = x). In other words, this method represents the probability mass function, or PMF for the distribution.
    
    Parameters:
    
    x - the value at which the probability mass function is evaluated.
    
    Returns:
    
    the value of the probability mass function at x