negative_binomial_distribution Class Reference

#include <negativebinomial.h>

Inheritance diagram for negative_binomial_distribution:

List of all members.

Public Member Functions
	negative_binomial_distribution (int r=1, double p=0.5)
double	cdf (int x) const
int	inverse_cdf (double p) const
double	pmf (int x) const
int	number_of_successes () const
void	number_of_successes (int n)
double	probability_of_success () const
void	probability_of_success (double p)

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Detailed Description

The Negative Binomial distribution.

References:

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

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Constructor & Destructor Documentation

NUM_NAMESPACE_BEGIN negative_binomial_distribution::negative_binomial_distribution	(	int	n = 1,
		double	p = 0.5
	)

Create a distribution with the given number of successes and probability of success.

Parameters:

	r	the number of successes.
	p	the probability of success.

Create a distribution with the given number of successes and probability of success.

Parameters:

	n	the number of successes.
	p	the probability of success.

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Member Function Documentation

double negative_binomial_distribution::cdf

(

int

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 discrete_distribution.

int negative_binomial_distribution::inverse_cdf

(

double

p

)

const [virtual]

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

Parameters:

p

the cumulative probability.

Returns:

x

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

Parameters:

p

the cumulative probability.

Returns:

x

Implements discrete_distribution.

double negative_binomial_distribution::pmf

(

int

x

)

const [virtual]

The PMF for this distribution. This method returns P(X = x).

Parameters:

x

the value at which the PMF is evaluated.

Returns:

PMF for this distribution.

Implements discrete_distribution.

int negative_binomial_distribution::number_of_successes

(

)

const

Access the number of successes.

Returns:

the number of successes.

void negative_binomial_distribution::number_of_successes

(

int

n

)

Modify the number of successes.

Parameters:

n

the new number of successes.

Modify the number of successes.

Parameters:

df

the new number of successes.

double negative_binomial_distribution::probability_of_success

(

)

const

Access the probability of success.

Returns:

the probability of success.

void negative_binomial_distribution::probability_of_success

(

double

p

)

Modify the probability of success.

Parameters:

p

the new probability of success.

Modify the probability of success.

Parameters:

df

the new probability of success.

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

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

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