theplu::yat::random::NegativeHyperGeometric Class Reference

#include <yat/random/random.h>

Inheritance diagram for theplu::yat::random::NegativeHyperGeometric:

Public Types
typedef unsigned long int	result_type

Public Member Functions
	NegativeHyperGeometric (void)
	Default constructor.
	NegativeHyperGeometric (unsigned int n1, unsigned int n2, unsigned int t)
	Constructor. More...
unsigned long int	operator() (void) const
unsigned long int	operator() (unsigned int n1, unsigned int n2, unsigned int t) const
void	seed (unsigned long s) const
	Set the seed to s. More...
unsigned long	seed_from_devurandom (void)
	Set the seed using the /dev/urandom device. More...

Protected Attributes
RNG *	rng_
	GSL random gererator.

Detailed Description

We have n1 samples of type 1 and n2 samples of type 2. Samples are drawn with replacement until t samles of type 2 are drawn. Then k, number of drawn samples of type 1, follows negative hypergeometric distribution.

Since

New in yat 0.14

See also

HyperGeometric

Member Typedef Documentation

result_type

typedef unsigned long int theplu::yat::random::Discrete::result_type

inherited

type returned by operator()

Since

New in yat 0.10

Constructor & Destructor Documentation

NegativeHyperGeometric()

theplu::yat::random::NegativeHyperGeometric::NegativeHyperGeometric	(	unsigned int	n1,
		unsigned int	n2,
		unsigned int	t
	)

Constructor.

Parameters

n1	number of samples of type 1
n2	number of samples of type 2
t	number of samples of type 2 to draw

Member Function Documentation

operator()() [1/2]

unsigned long int theplu::yat::random::NegativeHyperGeometric::operator() ( void  ) const

virtual

Returns

random number from negative hypergeometric distribution using parameters set in constructor.

Implements theplu::yat::random::Discrete.

operator()() [2/2]

unsigned long int theplu::yat::random::NegativeHyperGeometric::operator()	(	unsigned int	n1,
		unsigned int	n2,
		unsigned int	t
	)		const

Returns

random number from negative hypergeometric distribution using parameters passed.

seed()

void theplu::yat::random::Discrete::seed ( unsigned long  s ) const

inherited

Set the seed to s.

Set the seed to s in the underlying rng. If s is zero, a default value from the rng's original implementation is used (cf. GSL documentation).

Deprecated:

Provided for backward compatibility with the 0.7 API. Use RNG::instance()->seed(s) instead.

seed_from_devurandom()

unsigned long theplu::yat::random::Discrete::seed_from_devurandom ( void  )

inherited

Set the seed using the /dev/urandom device.

Returns

The seed acquired from /dev/urandom.

Deprecated:

Provided for backward compatibility with the 0.7 API. Use RNG::instance()->seed_from_devurandom() instead.

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

• yat/random/random.h