beta_distribution Class Reference

#include <beta.h>

Inheritance diagram for beta_distribution:

List of all members.

Public Member Functions
	beta_distribution (double alpha=1.0, double beta=1.0)
double	cdf (double x) const
double	inverse_cdf (double p) const
double	alpha () const
void	alpha (double a)
double	beta () const
void	beta (double b)

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Detailed Description

The Beta distribution (1).

References:

1. Eric W. Weisstein. "Beta Distribution." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/BetaDistribution.html

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Constructor & Destructor Documentation

NUM_NAMESPACE_BEGIN beta_distribution::beta_distribution	(	double	a = 1.0,
		double	b = 1.0
	)

Create a distribution with the given alpha and beta values.

Parameters:

	alpha	the alpha parameter.
	beta	the beta parameter.

Create a distribution with the given alpha and beta values.

Parameters:

	a	the alpha parameter.
	b	the beta parameter.

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Member Function Documentation

double beta_distribution::cdf

(

double

x

)

const [virtual]

The CDF for this distribution. This method returns P(X < x).

Parameters:

x

the value at which the CDF is evaluated.

Returns:

CDF for this distribution.

Implements continuous_distribution.

double beta_distribution::inverse_cdf

(

double

p

)

const [virtual]

The inverse CDF for this distribution. This method returns x such that, P(X < x) = p.

Parameters:

p

the cumulative probability.

Returns:

x

Implements continuous_distribution.

double beta_distribution::alpha

(

)

const

Access the alpha parameter.

Returns:

the alpha parameter.

void beta_distribution::alpha

(

double

a

)

Modify the alpha parameter.

Parameters:

a

the new alpha value.

double beta_distribution::beta

(

)

const

Access the beta parameter.

Returns:

the beta parameter.

void beta_distribution::beta

(

double

b

)

Modify the beta parameter.

Parameters:

b

the new beta value.

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The documentation for this class was generated from the following files:

• src/main/cpp/numerics4cpp/statistics/distribution/beta.h
• src/main/cpp/numerics4cpp/statistics/distribution/beta.cpp

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