URANIE::Sampler::TQMC Class Reference

Description of a variable (field). More...

#include <TQMC.h>

Inheritance diagram for URANIE::Sampler::TQMC:

Collaboration diagram for URANIE::Sampler::TQMC:

Public Member Functions
Constructor and Destructor
	TQMC (URANIE::DataServer::TDataServer *tds, Option_t *option, Int_t nCalcul)
	Constructor from a TDataServer, the name of the method and the size of the sample.
virtual	~TQMC ()
	Default destructor.
Generation of the sample
Creates the TNtupleD of data with only the TStochasticAttributes
virtual void	generateSample (Option_t *option="")
	Generates the sample.
Printing Log
virtual void	printLog (Option_t *option="")
	Prints the log.
Public Member Functions inherited from URANIE::Sampler::TSamplerDeterminist
	TSamplerDeterminist (URANIE::DataServer::TDataServer *tds, Option_t *option, Int_t ns)
	Constructor with a dataserver.
virtual	~TSamplerDeterminist ()
	Default destructor.
Public Member Functions inherited from URANIE::Sampler::TSampler
	TSampler (URANIE::DataServer::TDataServer *tds, Option_t *option, Int_t nCalcul)
	Constructor with a TDataServer, the options and the size of the sample.
virtual	~TSampler ()
	Default destructor.
Int_t	GetID ()
	Returns the ID of the class.
void	setMethodName (TString str)
	Sets the method name in a global variable.
TString	getMethodName ()
	Gets the method name.
virtual URANIE::DataServer::TDataServer *	getTDS ()
	Return the TDS filling by the sampling algorithm.
void	parseOption (Option_t *option)
	Parse the option.
virtual void	createListOfAttributes ()
	Creates the List of attributes to simulate.
virtual void	createTuple ()
	Creates the TDSNtupleD of data with only the TStochasticAttributes.
URANIE::DataServer::TDSNtupleD *	getTuple ()
	Returns the TDSNtupleD of data.
virtual void	fillOtherAttributes ()
	Fills the TDSNtupleD of data with other TFormulaAttributes.
void	setLog ()
void	unsetLog ()
void	changeLog ()
Bool_t	getLog ()

Private Attributes
TSequence *	_Sequence
TString	_sSequence

Additional Inherited Members
Public Attributes inherited from URANIE::Sampler::TSampler
Int_t	_nS
	The size of the sample.
Int_t	_nX
	The size of attributes to sample.
URANIE::DataServer::TDSNtupleD *	_ntsample
	the tntuple of data
TString	_sMethod
	The title of the sampler method.
Bool_t	_blog
	Log Printing.
Bool_t	_bupdateFile
	Update the back up file when generating the attributeformula if there is some.
URANIE::DataServer::TDataServer *	_tds
	Pointer to a TDS.
TList *	_lstOfAttributesToSample
	The list of Stochastic Attributes to sample.

Detailed Description

Description of a variable (field).

Both currently sequences implemented are :

• "sobol"
• "halton"

Example of use

Firstly, a pointer to a TDataServer is constructed

TDataServer *tdsqmc = new TDataServer("tdsQMC", "Test for qMC");
tdsqmc->addAttribute( new TAttribute("x_{1}", -1.0 , 2.) );
tdsqmc->addAttribute( new TAttribute("x_{2}",  0.0 , 3.) );
tdsqmc->addAttribute( new TAttribute("x_{3}",  1.0, 1.5) );

Then, a pointer to an object TQMC of the chosen sequence ("sobol"|"halton") is constructed from this TDataServer , and the generateSample() method is applied

TQMC * qmc = new TQMC(tdsqmc, "sobol", 300);
qmc->generateSample();

Bibliography source

The bibliography is :

• Eric Thiemard's thesis intitulated Sur le Calcul et la Majoration de la disrepance a l'Origine - Lausanne, EPFL, 2000 (in french)
• Lectures Notes in statistics intitulated Random and Quasi-Random Points Sets

  He proposes a theorical presentation of the Digital Point Sets of Gerhard Larcher.Anyway, this book is mostly oriented to the tests for checking that the generated points are really random ones.

Constructor & Destructor Documentation

TQMC()

URANIE::Sampler::TQMC::TQMC	(	URANIE::DataServer::TDataServer *	tds,
		Option_t *	option,
		Int_t	nCalcul
	)

Constructor from a TDataServer, the name of the method and the size of the sample.

Referenced by ClassImp().

~TQMC()

virtual URANIE::Sampler::TQMC::~TQMC ( )

virtual

Default destructor.

Referenced by ClassImp().

Member Function Documentation

generateSample()

virtual void URANIE::Sampler::TQMC::generateSample ( Option_t *  option = "" )

virtual

Generates the sample.

Implements URANIE::Sampler::TSampler.

Referenced by ClassImp().

printLog()

virtual void URANIE::Sampler::TQMC::printLog ( Option_t *  option = "" )

virtual

Prints the log.

Reimplemented from URANIE::Sampler::TSamplerDeterminist.

Referenced by ClassImp().

Member Data Documentation

_Sequence

TSequence* URANIE::Sampler::TQMC::_Sequence

private

Referenced by ClassImp().

_sSequence

TString URANIE::Sampler::TQMC::_sSequence

private

Referenced by ClassImp().