template<class Engine>
class ROOT::Math::Random< Engine >

Documentation for the Random class.

Definition at line 39 of file Random.h.

Public Types
typedef Engine::BaseType	EngineBaseType

typedef RandomFunctions< Engine, EngineBaseType >	RndmFunctions

Public Member Functions
	Random ()

	Random (unsigned int seed)

double	Rndm ()

void	RndmArray (int n, double *array)
	Generate an array of random numbers between ]0,1] 0 is excluded and 1 is included Function to preserve ROOT Trandom compatibility. More...

std::string	Type () const
	Return the type (name) of the used generator. More...

unsigned int	EngineSize () const
	Return the size of the generator state. More...

double	operator() ()

unsigned int	Integer ()

Engine &	Rng ()

double	Exp (double tau)
	Exponential distribution. More...

double	Gaus (double mean=0, double sigma=1)

double	Gamma (double a, double b)

double	LogNormal (double zeta, double sigma)
	Log-normal distribution. More...

double	ChiSquare (double nu)
	chi-square More...

double	FDist (double nu1, double nu2)
	F-distribution. More...

double	tDist (double nu)
	t student distribution More...

double	Landau (double m=0, double s=1)
	Landau distribution. More...

double	BreitWigner (double mean=0., double gamma=1)
	Breit Wigner distribution. More...

void	Circle (double &x, double &y, double r=1)
	generate random numbers in a 2D circle of radious 1 More...

void	Sphere (double &x, double &y, double &z, double r=1)
	generate random numbers in a 3D sphere of radious 1 More...

unsigned int	Binomial (unsigned int ntot, double prob)
	discrete distributions More...

unsigned int	Poisson (double mu)
	Poisson distribution. More...

unsigned int	NegativeBinomial (double n, double prob)
	Negative Binomial distribution First parameter is n, second is probability To be consistent with Random::Binomial. More...

std::vector< unsigned int >	Multinomial (unsigned int ntot, const std::vector< double > &p)
	Multinomial distribution. More...

double	Uniform (double a, double b)

double	Uniform (double a=1.0)

double	Uniform2 (double a, double b)

RandomFunctions< Engine, EngineBaseType > &	Functions ()

void	SetSeed (int seed)

Private Attributes
Engine	fEngine

RndmFunctions	fFunctions

#include <Math/Random.h>

Member Typedef Documentation

§ EngineBaseType

template<class Engine>

typedef Engine::BaseType ROOT::Math::Random< Engine >::EngineBaseType

Definition at line 43 of file Random.h.

§ RndmFunctions

template<class Engine>

typedef RandomFunctions<Engine, EngineBaseType> ROOT::Math::Random< Engine >::RndmFunctions

Definition at line 44 of file Random.h.

Constructor & Destructor Documentation

§ Random() [1/2]

template<class Engine>

ROOT::Math::Random< Engine >::Random ( )

inline

Definition at line 46 of file Random.h.

§ Random() [2/2]

template<class Engine>

ROOT::Math::Random< Engine >::Random ( unsigned int seed )

inlineexplicit

Definition at line 51 of file Random.h.

Member Function Documentation

§ Binomial()

template<class Engine>

unsigned int ROOT::Math::Random< Engine >::Binomial	(	unsigned int	ntot,
		double	prob
	)

inline

discrete distributions

Binomial distribution

Definition at line 155 of file Random.h.

§ BreitWigner()

template<class Engine>

double ROOT::Math::Random< Engine >::BreitWigner	(	double	mean = `0.`,
		double	gamma = `1`
	)

inline

Breit Wigner distribution.

Definition at line 137 of file Random.h.

§ ChiSquare()

template<class Engine>

double ROOT::Math::Random< Engine >::ChiSquare ( double nu )

inline

chi-square

Definition at line 118 of file Random.h.

§ Circle()

template<class Engine>

void ROOT::Math::Random< Engine >::Circle	(	double &	x,
		double &	y,
		double	r = `1`
	)

inline

generate random numbers in a 2D circle of radious 1

Definition at line 142 of file Random.h.

§ EngineSize()

template<class Engine>

unsigned int ROOT::Math::Random< Engine >::EngineSize ( ) const

inline

Return the size of the generator state.

Definition at line 81 of file Random.h.

§ Exp()

template<class Engine>

double ROOT::Math::Random< Engine >::Exp ( double tau )

inline

Exponential distribution.

Definition at line 100 of file Random.h.

§ FDist()

template<class Engine>

double ROOT::Math::Random< Engine >::FDist	(	double	nu1,
		double	nu2
	)

inline

F-distribution.

Definition at line 123 of file Random.h.

§ Functions()

template<class Engine>

RandomFunctions<Engine,EngineBaseType>& ROOT::Math::Random< Engine >::Functions ( )

inline

Definition at line 190 of file Random.h.

§ Gamma()

template<class Engine>

double ROOT::Math::Random< Engine >::Gamma	(	double	a,
		double	b
	)

inline

Definition at line 108 of file Random.h.

§ Gaus()

template<class Engine>

double ROOT::Math::Random< Engine >::Gaus	(	double	mean = `0`,
		double	sigma = `1`
	)

inline

Definition at line 104 of file Random.h.

Referenced by unuranSimple().

§ Integer()

template<class Engine>

unsigned int ROOT::Math::Random< Engine >::Integer ( )

inline

Definition at line 91 of file Random.h.

§ Landau()

template<class Engine>

double ROOT::Math::Random< Engine >::Landau	(	double	m = `0`,
		double	s = `1`
	)

inline

Landau distribution.

Definition at line 133 of file Random.h.

§ LogNormal()

template<class Engine>

double ROOT::Math::Random< Engine >::LogNormal	(	double	zeta,
		double	sigma
	)

inline

Log-normal distribution.

Definition at line 113 of file Random.h.

§ Multinomial()

template<class Engine>

std::vector<unsigned int> ROOT::Math::Random< Engine >::Multinomial	(	unsigned int	ntot,
		const std::vector< double > &	p
	)

inline

Multinomial distribution.

Definition at line 173 of file Random.h.

§ NegativeBinomial()

template<class Engine>

unsigned int ROOT::Math::Random< Engine >::NegativeBinomial	(	double	n,
		double	prob
	)

inline

Negative Binomial distribution First parameter is n, second is probability To be consistent with Random::Binomial.

Definition at line 168 of file Random.h.

§ operator()()

template<class Engine>

double ROOT::Math::Random< Engine >::operator() ( )

inline

Definition at line 87 of file Random.h.

§ Poisson()

template<class Engine>

unsigned int ROOT::Math::Random< Engine >::Poisson ( double mu )

inline

Poisson distribution.

Definition at line 161 of file Random.h.

§ Rndm()

template<class Engine>

double ROOT::Math::Random< Engine >::Rndm ( )

inline

Definition at line 58 of file Random.h.

§ RndmArray()

template<class Engine>

void ROOT::Math::Random< Engine >::RndmArray	(	int	n,
		double *	array
	)

inline

Generate an array of random numbers between ]0,1] 0 is excluded and 1 is included Function to preserve ROOT Trandom compatibility.

Definition at line 67 of file Random.h.

Referenced by main(), and testQuasiRandom().

§ Rng()

template<class Engine>

Engine& ROOT::Math::Random< Engine >::Rng ( )

inline

Definition at line 95 of file Random.h.

§ SetSeed()

template<class Engine>

void ROOT::Math::Random< Engine >::SetSeed ( int seed )

inline

Definition at line 194 of file Random.h.

§ Sphere()

template<class Engine>

void ROOT::Math::Random< Engine >::Sphere	(	double &	x,
		double &	y,
		double &	z,
		double	r = `1`
	)

inline

generate random numbers in a 3D sphere of radious 1

Definition at line 147 of file Random.h.

§ tDist()

template<class Engine>

double ROOT::Math::Random< Engine >::tDist ( double nu )

inline

t student distribution

Definition at line 128 of file Random.h.

§ Type()

template<class Engine>

std::string ROOT::Math::Random< Engine >::Type ( ) const

inline

Return the type (name) of the used generator.

Definition at line 74 of file Random.h.

§ Uniform() [1/2]

template<class Engine>

double ROOT::Math::Random< Engine >::Uniform	(	double	a,
		double	b
	)

inline

Definition at line 179 of file Random.h.

§ Uniform() [2/2]

template<class Engine>

double ROOT::Math::Random< Engine >::Uniform ( double a = 1.0 )

inline

Definition at line 182 of file Random.h.

§ Uniform2()

template<class Engine>

double ROOT::Math::Random< Engine >::Uniform2	(	double	a,
		double	b
	)

inline

Definition at line 185 of file Random.h.

Member Data Documentation

§ fEngine

template<class Engine>

Engine ROOT::Math::Random< Engine >::fEngine

private

Definition at line 198 of file Random.h.

Referenced by ROOT::Math::Random< Engine >::EngineSize(), ROOT::Math::Random< Engine >::Integer(), ROOT::Math::Random< Engine >::operator()(), ROOT::Math::Random< Engine >::Random(), ROOT::Math::Random< Engine >::Rndm(), ROOT::Math::Random< Engine >::RndmArray(), ROOT::Math::Random< Engine >::Rng(), ROOT::Math::Random< Engine >::SetSeed(), and ROOT::Math::Random< Engine >::Type().

§ fFunctions

template<class Engine>

RndmFunctions ROOT::Math::Random< Engine >::fFunctions

private

Definition at line 199 of file Random.h.

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

math/mathcore/inc/Math/Random.h

template<class Engine> class ROOT::Math::Random< Engine >

Public Types

Public Member Functions

Private Attributes

Member Typedef Documentation

§ EngineBaseType

§ RndmFunctions

Constructor & Destructor Documentation

§ Random() [1/2]

§ Random() [2/2]

Member Function Documentation

§ Binomial()

§ BreitWigner()

§ ChiSquare()

§ Circle()

§ EngineSize()

§ Exp()

§ FDist()

§ Functions()

§ Gamma()

§ Gaus()

§ Integer()

§ Landau()

§ LogNormal()

§ Multinomial()

§ NegativeBinomial()

§ operator()()

§ Poisson()

§ Rndm()

§ RndmArray()

§ Rng()

§ SetSeed()

§ Sphere()

§ tDist()

§ Type()

§ Uniform() [1/2]

§ Uniform() [2/2]

§ Uniform2()

Member Data Documentation

§ fEngine

§ fFunctions

template<class Engine>
class ROOT::Math::Random< Engine >