Distrib Class Reference

#include <distrib.h>

Inheritance diagram for Distrib:

List of all members.

Public Member Functions
virtual double	GetVal (void)=0
Static Public Member Functions
static void	InitRng (unsigned long int seed=0)
Protected Member Functions
	Distrib (void)
double	Pick (void)

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Detailed Description

RNG abstract class. Abstract class that contains an implementation of the Wichmann-Hill composite linear congruential random number generator.

Must be implemented in derived classes. The derived GetVal(void) will call Pick(void) and will operate with the result to give succesive random numbers properly distributed.

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Constructor & Destructor Documentation

Distrib::Distrib (  void   )  [protected]

Only one random number generator may exist, no matter how many distributions are used by the simulation model.

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Member Function Documentation

virtual double Distrib::GetVal (  void   )  [pure virtual]

Gets next random number according to the class' distribution. Returns: next random number generated according to a distribution determined by the derived class. Implemented in Constant, Unif01, Uniform, Exponential, Normal, ErlangK, Pareto, HyperExponential, and DiscreteEmpirical.

void Distrib::InitRng (  unsigned long int  seed = 0  )  [static]

Seed initiator, must be called before any derived "GetVal". If no seed is given or seed==0, a random one will be automatically chosen Parameters: seed

double Distrib::Pick (  void   )  [protected]

Picks next random number. Succesive calls return evenly distributed random numbers in [0,1) It is available only to derived classes.

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

• distrib.h
• distrib.cc

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