Stats::RandGen Class Reference

Uniform Random Generator. More...

Inheritance diagram for Stats::RandGen:

Public Member Functions
	RandGen ()
virtual double	get () const
	Uniform [0-1]. More...
int	getInt () const
	Uniform int. More...
int	getIndex (int sz) const
	random index in the range [0,sz> More...
int	getIndexFast (int sz, int seed) const
	getIndex using a very simple random generator More...
od_int64	getIndex (od_int64 sz) const
	random index in the range [0,sz> More...
od_int64	getIndexFast (od_int64 sz, od_int64 seed) const
	getIndex using a very simple random generator More...
template<class T , class SzTp >
void	subselect (T *, SzTp sz, SzTp targetsz) const
template<class T >
void	subselect (T &, od_int64 targetsz) const
template<class ODSET >
void	subselect (ODSET &ods, od_int64 targetsz) const
Public Member Functions inherited from Stats::RandomGenerator
virtual	~RandomGenerator ()
virtual void	init (int seed)

Private Attributes
int	seed_

Detailed Description

Uniform Random Generator.

Constructor & Destructor Documentation

Stats::RandGen::RandGen

(

)

Member Function Documentation

virtual double Stats::RandGen::get ( ) const

virtual

Uniform [0-1].

Implements Stats::RandomGenerator.

int Stats::RandGen::getIndex

(

int

sz

)

const

random index in the range [0,sz>

od_int64 Stats::RandGen::getIndex

(

od_int64

sz

)

const

random index in the range [0,sz>

int Stats::RandGen::getIndexFast	(	int	sz,
		int	seed
	)		const

getIndex using a very simple random generator

od_int64 Stats::RandGen::getIndexFast	(	od_int64	sz,
		od_int64	seed
	)		const

getIndex using a very simple random generator

int Stats::RandGen::getInt

(

)

const

Uniform int.

template<class T , class SzTp >

void Stats::RandGen::subselect ( T *  arr, SzTp  sz, SzTp  targetsz  ) const

inline

Does not preserve order. Afterwards, the 'removed' values occupy the indexes targetsz - maxsz-1

template<class T >

void Stats::RandGen::subselect	(	T &	,
		od_int64	targetsz
	)		const

Does not preserve order The removed items will really be erased

template<class ODSET >

void Stats::RandGen::subselect ( ODSET &  ods, od_int64  targetsz  ) const

inline

Member Data Documentation

int Stats::RandGen::seed_

private