Utils::Sampling::ProbabilityAlias Class Reference

#include <Sampling.h>

Inheritance diagram for Utils::Sampling::ProbabilityAlias:

Collaboration diagram for Utils::Sampling::ProbabilityAlias:

Public Member Functions
template<class Probability>
	ProbabilityAlias (size_t count, size_t sourceCount, double mass, const Probability &probability, size_t blockSize, const std::vector< double > &masses)
size_t	Sample (double value) const
size_t	SourceRow (size_t row) const

Protected Member Functions
template<class Index, class Populate>
void	BuildAliasTable (std::vector< Index > &aliases, const Populate &populate)
size_t	SampleIndex (double v) const
template<class Populate>
void	SetAliasTable (size_t count, const Populate &populate)

Static Protected Member Functions
static constexpr bool	UseCompactIndices (size_t count)

Protected Attributes
std::vector< uint32_t >	compactAliases
std::vector< double >	probabilities
std::vector< uint64_t >	wideAliases

Static Protected Attributes
static constexpr double	oneMinusEps = 1. - std::numeric_limits<double>::epsilon()

Detailed Description

Definition at line 86 of file Sampling.h.

Constructor & Destructor Documentation

ProbabilityAlias()

template<class Probability>

Utils::Sampling::ProbabilityAlias::ProbabilityAlias ( size_t count, size_t sourceCount, double mass, const Probability & probability, size_t blockSize, const std::vector< double > & masses )

inline

Definition at line 90 of file Sampling.h.

References Probability(), and Utils::AliasBase::SetAliasTable().

Member Function Documentation

BuildAliasTable()

template<class Index, class Populate>

void Utils::AliasBase::BuildAliasTable ( std::vector< Index > & aliases, const Populate & populate )

inlineprotectedinherited

Definition at line 40 of file AliasBase.h.

References probabilities.

Referenced by SetAliasTable().

Sample()

size_t Utils::Sampling::ProbabilityAlias::Sample ( double value ) const

inline

Definition at line 120 of file Sampling.h.

References Utils::AliasBase::SampleIndex().

SampleIndex()

size_t Utils::AliasBase::SampleIndex ( double v ) const

inlineprotectedinherited

Definition at line 105 of file AliasBase.h.

References compactAliases, oneMinusEps, probabilities, and wideAliases.

Referenced by Utils::Alias::Sample(), Utils::AliasBig::Sample(), and Utils::Sampling::ProbabilityAlias::Sample().

SetAliasTable()

template<class Populate>

void Utils::AliasBase::SetAliasTable ( size_t count, const Populate & populate )

inlineprotectedinherited

Definition at line 22 of file AliasBase.h.

References BuildAliasTable(), compactAliases, probabilities, UseCompactIndices(), and wideAliases.

Referenced by Utils::Alias::Alias(), Utils::Alias::Alias(), Utils::AliasBig::AliasBig(), and Utils::Sampling::ProbabilityAlias::ProbabilityAlias().

SourceRow()

size_t Utils::Sampling::ProbabilityAlias::SourceRow ( size_t row ) const

inline

Definition at line 125 of file Sampling.h.

UseCompactIndices()

constexpr bool Utils::AliasBase::UseCompactIndices ( size_t count )

inlinestaticconstexprprotectedinherited

Definition at line 17 of file AliasBase.h.

Referenced by SetAliasTable().

Member Data Documentation

compactAliases

std::vector<uint32_t> Utils::AliasBase::compactAliases

protectedinherited

Definition at line 116 of file AliasBase.h.

Referenced by SampleIndex(), and SetAliasTable().

oneMinusEps

double Utils::AliasBase::oneMinusEps = 1. - std::numeric_limits<double>::epsilon()

staticconstexprprotectedinherited

Definition at line 118 of file AliasBase.h.

Referenced by Utils::Alias::Alias(), and SampleIndex().

probabilities

std::vector<double> Utils::AliasBase::probabilities

protectedinherited

Definition at line 115 of file AliasBase.h.

Referenced by BuildAliasTable(), SampleIndex(), and SetAliasTable().

wideAliases

std::vector<uint64_t> Utils::AliasBase::wideAliases

protectedinherited

Definition at line 117 of file AliasBase.h.

Referenced by SampleIndex(), and SetAliasTable().

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

• Sampling.h