AbstractDistribution (Commons Math 2.2 API)

java.lang.Object
- org.apache.commons.math.distribution.AbstractDistribution

All Implemented Interfaces:

java.io.Serializable, Distribution

Direct Known Subclasses:

AbstractContinuousDistribution, AbstractIntegerDistribution
```
public abstract class AbstractDistribution
extends java.lang.Object
implements Distribution, java.io.Serializable
```
Base class for probability distributions.

Version:

$Revision: 1054524 $ $Date: 2011-01-03 05:59:18 +0100 (lun. 03 janv. 2011) $

See Also:

Serialized Form

Constructor Summary

Constructors
Modifier Constructor Description

protected AbstractDistribution()
Default constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`cumulativeProbability(double x0, double x1)`	For a random variable X whose values are distributed according to this distribution, this method returns P(x0 ≤ X ≤ x1).

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

- Constructor Detail
  - AbstractDistribution
```
protected AbstractDistribution()
```
    Default constructor.
- Method Detail
  - cumulativeProbability
```
public double cumulativeProbability(double x0,
                                    double x1)
                             throws MathException
```
    For a random variable X whose values are distributed according to this distribution, this method returns P(x0 ≤ X ≤ x1).
    The default implementation uses the identity
    
    P(x0 ≤ X ≤ x1) = P(X ≤ x1) - P(X ≤ x0)
    
    Specified by:
    
    cumulativeProbability in interface Distribution
    
    Parameters:
    
    x0 - the (inclusive) lower bound
    
    x1 - the (inclusive) upper bound
    
    Returns:
    
    the probability that a random variable with this distribution will take a value between x0 and x1, including the endpoints.
    
    Throws:
    
    MathException - if the cumulative probability can not be computed due to convergence or other numerical errors.
    
    java.lang.IllegalArgumentException - if x0 > x1