generators::DISCREP Class Reference

A random vector generator using discrepancy sampling. More...

#include <discrep.h>

Inheritance diagram for generators::DISCREP:

List of all members.

Public Member Functions
	DISCREP (unsigned int dim)
	Base constructor.
virtual	~DISCREP ()
	Base deconstructor.
virtual void	nextVector (double *x)
	Generate d new coordinates (= 1 point).
virtual void	setSeed (double *x, unsigned int s)
	Initialises the discrepancy sampler.
Protected Attributes
int	pa [MAX_DIM][COORD_DIGITS]
	Coefficients a_{i,k} for each P_i^k.
double	pip [MAX_DIM][COORD_DIGITS]
	Cache prime inverse powers: P_i^{-k-1}.
Static Protected Attributes
int	primes [MAX_DIM] = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131}
	A list of pre-defined prime numbers.

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Detailed Description

A random vector generator using discrepancy sampling.

Discrepancy sampling uses prime base expansion of point indices to obtain properly distributed points in .

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Constructor & Destructor Documentation

generators::DISCREP::DISCREP (  unsigned int  dim  )  [inline]

Base constructor. Simply calls RVG's constructor. Parameters: dim  The dimension d of the space from which points are sampled. See also: RVG::RVG()

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Member Function Documentation

void generators::DISCREP::nextVector (  double *  x  )  [virtual]

Generate d new coordinates (= 1 point). Make sure to have called setSeed(double*, int) at least once before. Parameters: x  The vector that should the new coordinates. Implements generators::RVG.

void generators::DISCREP::setSeed (  double *  x, unsigned int  s )  [virtual]

Initialises the discrepancy sampler. Since this sampler calculates points based on the previously generated point, x has to be supplied to the seeding function. Note that the state of the RNG *partially* is stored in the vector x! Parameters: x  The vector in which randomly generated vectors are stored. s  The seed to be used for initialising x.

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

• discrep.h
• discrep.cc

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