turi::random Namespace Reference

Classes
class	alias_sampler
class	generator

Functions
uint64_t	pure_random_seed ()
void	seed ()
void	seed (size_t seed_value)
void	nondet_seed ()
void	time_seed ()
generator &	get_source ()
template<typename NumType >
NumType	uniform (const NumType min, const NumType max)
template<typename NumType >
NumType	fast_uniform (const NumType min, const NumType max)
double	rand01 ()
int	rand ()
double	gamma (const double alpha=double(1))
double	gaussian (const double mean=double(0), const double stdev=double(1))
double	normal (const double mean=double(0), const double stdev=double(1))
double	cauchy (const double location=double(0), const double scale=double(1))
bool	bernoulli (const double p=double(0.5))
bool	fast_bernoulli (const double p=double(0.5))
template<typename Double >
size_t	multinomial (const std::vector< Double > &prb)
template<typename VecLike , typename Double >
size_t	multinomial (const VecLike &prb, Double norm)
template<typename Double >
size_t	multinomial_cdf (const std::vector< Double > &cdf)
template<typename T >
std::vector< T >	permutation (const size_t nelems)
template<typename T >
void	shuffle (std::vector< T > &vec)
template<typename Iterator >
void	shuffle (Iterator begin, Iterator end)
void	pdf2cdf (std::vector< double > &pdf)

Detailed Description

A collection of thread safe random number routines. Each thread is assigned its own generator however assigning a seed affects all current and future generators.

Function Documentation

pdf2cdf()

void turi::random::pdf2cdf

(

std::vector< double > &

pdf

)

Converts a discrete PDF into a CDF

pure_random_seed()

uint64_t turi::random::pure_random_seed

(

)

A function that returns a new random seed value every time it's called.