Provide random numbers with Gaussian distribution.This class is an interface to the GSL random number generator. More...

#include <rng.h>

Classes
class	UTException
	exception class for RNG indicating request for unkown type More...

Public Member Functions
	RNGgaussian (const double &std=1., const double &mean=0., const char *type="default")
	initialize random number generator More...

	~RNGgaussian ()

double	operator() () const
	returns a random number More...

double	value () const
	returns a random number More...

void	set (const unsigned long int &seed)
	feed with seed value More...

void	set ()
	use time as seed value More...

std::string	type () const
	return type of random number generator More...

unsigned long int	seed () const
	return last seed value More...

double	std () const
	return standard deviation More...

double	mean () const
	return mean More...

Static Public Member Functions
static void	rng_list_types (std::ostream &os)
	print list of random number generators to stream. More...

Private Attributes
double	Mstd
	store standard deviation and mean value More...

double	Mmean

gsl_rng *	MR
	pointer to RNG More...

unsigned long int	Mseed
	memorize last seed value More...

Detailed Description

Provide random numbers with Gaussian distribution.

This class is an interface to the GSL random number generator.

Note: This class specifically returns values based on a normal distribution. If for some reason a second class shall be provided to return values based on a uniform distribution, only the value() member function will be different. It then would be appropriate to define an abstract base class from which RNGgaussion and RNGuniform are derived.

Definition at line 78 of file rng.h.

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

Classes