BetaDistribution (Commons Math 2.2 API)

All Superinterfaces:

ContinuousDistribution, Distribution, HasDensity<java.lang.Double>

All Known Implementing Classes:

BetaDistributionImpl
```
public interface BetaDistribution
extends ContinuousDistribution, HasDensity<java.lang.Double>
```
Computes the cumulative, inverse cumulative and density functions for the beta distribuiton.

Since:

2.0

Version:

$Revision: 920852 $ $Date: 2010-03-09 13:53:44 +0100 (mar. 09 mars 2010) $

See Also:

Beta_distribution

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`double`	`density(java.lang.Double x)`	Return the probability density for a particular point.
`double`	`getAlpha()`	Access the shape parameter, alpha
`double`	`getBeta()`	Access the shape parameter, beta
`void`	`setAlpha(double alpha)`	Deprecated. as of 2.1
`void`	`setBeta(double beta)`	Deprecated. as of 2.1

Methods inherited from interface org.apache.commons.math.distribution.ContinuousDistribution
inverseCumulativeProbability

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

- Method Detail
  - setAlpha
```
@Deprecated
void setAlpha(double alpha)
```
    Deprecated.
    as of 2.1
    
    Modify the shape parameter, alpha.
    
    Parameters:
    
    alpha - the new shape parameter.
  - getAlpha
```
double getAlpha()
```
    Access the shape parameter, alpha
    
    Returns:
    
    alpha.
  - setBeta
```
@Deprecated
void setBeta(double beta)
```
    Deprecated.
    as of 2.1
    
    Modify the shape parameter, beta.
    
    Parameters:
    
    beta - the new scale parameter.
  - getBeta
```
double getBeta()
```
    Access the shape parameter, beta
    
    Returns:
    
    beta.
  - density
```
double density(java.lang.Double x)
        throws MathException
```
    Return the probability density for a particular point.
    
    Specified by:
    
    density in interface HasDensity<java.lang.Double>
    
    Parameters:
    
    x - The point at which the density should be computed.
    
    Returns:
    
    The pdf at point x.
    
    Throws:
    
    MathException - if probability density cannot be computed