graphlab::random Namespace Reference

Classes
class	generator

Functions
void	destroy_tls_data (void *ptr)
generator &	get_source ()
void	seed ()
void	nondet_seed ()
void	time_seed ()
void	seed (const size_t seed_value)
void	pdf2cdf (std::vector< double > &pdf)
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))
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 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)

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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.

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Function Documentation

void graphlab::random::destroy_tls_data

(

void *

ptr

)

Pthread TLS code this function is responsible for destroying the random number generators

Definition at line 199 of file random.cpp.

void graphlab::random::pdf2cdf

(

std::vector< double > &

pdf

)

Converts a discrete PDF into a CDF

Definition at line 287 of file random.cpp.