org.apache.commons.math.distribution

Interface BetaDistribution

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

See Also:

Beta_distribution

Method Summary

Modifier and Type	Method and 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