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	Beta (double a, double b)
	Beta distribution. More...

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

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

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

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

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

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

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

RandomFunctions< Engine, EngineBaseType > &	Functions ()

double	Gamma (double a, double b)
	Gamma distribution. More...

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

uint64_t	Integer ()

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

double	Logistic (double a)
	Logistic distribution. More...

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

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

double	operator() ()

double	Pareto (double a, double b)
	Pareto distribution. More...

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

double	Rayleigh (double sigma)
	Rayleigh distribution. More...

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...

Engine &	Rng ()

void	SetSeed (int seed)

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

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

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

double	Uniform (double a, double b)

double	Uniform (double a=1.0)

double	Uniform2 (double a, double b)

Static Public Member Functions
static uint64_t	MaxInt ()

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

◆ Beta()

template<class Engine >

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

inline

Beta distribution.

Definition at line 117 of file Random.h.

◆ Binomial()

template<class Engine >

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

inline

discrete distributions

Binomial distribution

Definition at line 179 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 161 of file Random.h.

◆ ChiSquare()

template<class Engine >

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

inline

chi-square

Definition at line 127 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 166 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 103 of file Random.h.

◆ FDist()

template<class Engine >

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

inline

F-distribution.

Definition at line 147 of file Random.h.

◆ Functions()

template<class Engine >

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

inline

Definition at line 214 of file Random.h.

◆ Gamma()

template<class Engine >

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

inline

Gamma distribution.

Definition at line 112 of file Random.h.

◆ Gaus()

template<class Engine >

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

inline

Definition at line 107 of file Random.h.

◆ Integer()

template<class Engine >

uint64_t ROOT::Math::Random< Engine >::Integer ( )

inline

Definition at line 90 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 157 of file Random.h.

◆ Logistic()

template<class Engine >

double ROOT::Math::Random< Engine >::Logistic ( double a )

inline

Logistic distribution.

Definition at line 137 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 122 of file Random.h.

◆ MaxInt()

template<class Engine >

static uint64_t ROOT::Math::Random< Engine >::MaxInt ( )

inlinestatic

Definition at line 94 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 197 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 192 of file Random.h.

◆ operator()()

template<class Engine >

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

inline

Definition at line 86 of file Random.h.

◆ Pareto()

template<class Engine >

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

inline

Pareto distribution.

Definition at line 142 of file Random.h.

◆ Poisson()

template<class Engine >

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

inline

Poisson distribution.

Definition at line 185 of file Random.h.

◆ Rayleigh()

template<class Engine >

double ROOT::Math::Random< Engine >::Rayleigh ( double sigma )

inline

Rayleigh distribution.

Definition at line 132 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.

◆ Rng()

template<class Engine >

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

inline

Definition at line 98 of file Random.h.

◆ SetSeed()

template<class Engine >

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

inline

Definition at line 218 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 171 of file Random.h.

◆ tDist()

template<class Engine >

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

inline

t student distribution

Definition at line 152 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 203 of file Random.h.

◆ Uniform() [2/2]

template<class Engine >

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

inline

Definition at line 206 of file Random.h.

◆ Uniform2()

template<class Engine >

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

inline

Definition at line 209 of file Random.h.

Member Data Documentation

◆ fEngine

template<class Engine >

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

private

Definition at line 222 of file Random.h.

◆ fFunctions

template<class Engine >

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

private

Definition at line 223 of file Random.h.

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

math/mathcore/inc/Math/Random.h

Public Types

Public Member Functions

Static Public Member Functions

Private Attributes

Member Typedef Documentation

◆ EngineBaseType

◆ RndmFunctions

Constructor & Destructor Documentation

◆ Random() [1/2]

◆ Random() [2/2]

Member Function Documentation

◆ Beta()

◆ Binomial()

◆ BreitWigner()

◆ ChiSquare()

◆ Circle()

◆ EngineSize()

◆ Exp()

◆ FDist()

◆ Functions()

◆ Gamma()

◆ Gaus()

◆ Integer()

◆ Landau()

◆ Logistic()

◆ LogNormal()

◆ MaxInt()

◆ Multinomial()

◆ NegativeBinomial()

◆ operator()()

◆ Pareto()

◆ Poisson()

◆ Rayleigh()

◆ Rndm()

◆ RndmArray()

◆ Rng()

◆ SetSeed()

◆ Sphere()

◆ tDist()

◆ Type()

◆ Uniform() [1/2]

◆ Uniform() [2/2]

◆ Uniform2()

Member Data Documentation

◆ fEngine

◆ fFunctions