EGS_SimpleAliasTable Class Reference

A class for sampling random bins from a given probability distribution using the alias table technique. More...

#include <egs_alias_table.h>

Public Member Functions
	EGS_SimpleAliasTable (int N, const EGS_Float *f)
	Constructor. More...
	~EGS_SimpleAliasTable ()
	Destructor.
int	sample (EGS_RandomGenerator *rndm) const
	Sample a random bin. More...

Detailed Description

A class for sampling random bins from a given probability distribution using the alias table technique.

Instances of this class can be used to efficiently sample random bins from any probability distribution. This is a special case of the more general EGS_AliasTable class that has a more efficient implementation and is easier to use when only sampling random bin indeces is needed

Definition at line 182 of file egs_alias_table.h.

Constructor & Destructor Documentation

EGS_SimpleAliasTable::EGS_SimpleAliasTable	(	int	N,
		const EGS_Float *	f
	)

Constructor.

Construct a simple alias table having N bins with probabilities given by the array f

Definition at line 302 of file egs_alias_table.cpp.

References egsFatal, egsWarning, epsilon, and loopMax.

Member Function Documentation

int EGS_SimpleAliasTable::sample

(

EGS_RandomGenerator *

rndm

)

const

Sample a random bin.

Returns a random bin according to the bin probabilities for this alias table

Definition at line 200 of file egs_alias_table.h.

References EGS_RandomGenerator::getUniform().

Referenced by EGS_ConicalShellStackShape::getPoint().

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

• /home/rwtownson/EGSnrc/HEN_HOUSE/egs++/egs_alias_table.h
• /home/rwtownson/EGSnrc/HEN_HOUSE/egs++/egs_alias_table.cpp