URANIE::DataServer::TPCA Class Reference

Execute the Principal Component Analysis from a TDS. More...

#include <TPCA.h>

Inheritance diagram for URANIE::DataServer::TPCA:

Collaboration diagram for URANIE::DataServer::TPCA:

Public Member Functions
Constructor and Destructor
	TPCA (URANIE::DataServer::TDataServer *tds, const char *varexp="*", Option_t *option="")
	Default constructor with TDS and attributes.
virtual	~TPCA ()
	Default destructor.
Get and Set methods
TNtupleD *	getResultNtupleD ()
	Return the NtupleD of results.
TDSNtupleD *	getVariableResultNtupleD ()
	Return the NtupleD of results.
Computation
void	compute (Option_t *option="")
	The compute method.
The Draw methods
void	drawPCA (Int_t indX, Int_t indY, Option_t *option="")
	Draw the Component.
void	drawLoading (Int_t indX, Int_t indY, Option_t *option="")
	Draw the Loading.
Printing Log
void	setLog ()
void	unsetLog ()
void	changeLog ()
Bool_t	getLog ()
virtual void	printLog (Option_t *option="RAS")

Public Attributes
Bool_t	_blog
	Boolean for edit the log.
URANIE::DataServer::TDataServer *	_tds
TNtupleD *	_ntdResult
	Pointer to a TDS.
TDSNtupleD *	_ntdVarResult
	The NTupleD of results (for variable interpretation)
TNtupleD *	_ntdLoading
	The NTupleD of Loading.
TList *	_listOfInputAttributes
	The list of attributes.
TMatrixD	_matCorr
	The matrix of Correlation.
TVectorD	_vecEigenValues
	The vector of Eigenvalues.
TVectorD	_vecSumPctEigenValues
	The vector of sum (in percent) of the Eigenvalues.
TMatrixD	_matEigenVectors
	The matrix of Eigenvectors.

Detailed Description

Execute the Principal Component Analysis from a TDS.

The Uranie API is

TDataServer * tds = new TDataServer("tds", "my TDS");
tds->fileDataRead("jambu.dat");
 
TPCA * tpca = new TPCA(tds, "Prof:Tran:Mena:Enfa:Cour:Toil:Rep:Somm:Tele:Lois");
tpca->compute();
 
tpca->drawPCA(1, 2);
tpca->drawLoading(1,2);

See also

http://root.cern.ch/root/html/TPrincipal.html

Constructor & Destructor Documentation

TPCA()

URANIE::DataServer::TPCA::TPCA	(	URANIE::DataServer::TDataServer *	tds,
		const char *	varexp = "*",
		Option_t *	option = ""
	)

Default constructor with TDS and attributes.

Parameters

tds	(TDataServer *) the pointer of the TDataServer.
varexp	(char*)[""] The list of attributes to analyse separated by the caracter ":" ( default "*" all attributes)
option	(Option_t*) [""] option (not used actually)

Referenced by ClassImp().

~TPCA()

virtual URANIE::DataServer::TPCA::~TPCA ( )

virtual

Default destructor.

Referenced by ClassImp().

Member Function Documentation

changeLog()

void URANIE::DataServer::TPCA::changeLog ( )

inline

References _blog.

compute()

void URANIE::DataServer::TPCA::compute

(

Option_t *

option = ""

)

The compute method.

Parameters

option

(Option_t*) [""] option (not used actually)

Referenced by ClassImp().

drawLoading()

void URANIE::DataServer::TPCA::drawLoading	(	Int_t	indX,
		Int_t	indY,
		Option_t *	option = ""
	)

Draw the Loading.

Parameters

indX	(Int_t) : the X component
indY	(Int_t) : the Y component
option	(Option_t*) [""] option (not used actually)

Referenced by ClassImp().

drawPCA()

void URANIE::DataServer::TPCA::drawPCA	(	Int_t	indX,
		Int_t	indY,
		Option_t *	option = ""
	)

Draw the Component.

Parameters

indX	(Int_t) : the X component
indY	(Int_t) : the Y component
option	(Option_t*) [""] option (not used actually)

Referenced by ClassImp().

getLog()

Bool_t URANIE::DataServer::TPCA::getLog ( )

inline

References _blog.

getResultNtupleD()

TNtupleD * URANIE::DataServer::TPCA::getResultNtupleD ( )

inline

Return the NtupleD of results.

The NTupleD contains :

• an iterator (i)
• the eigenvalue (eigen)
• the eigenvalue in percentage (eigen_pct)
• the cumulative eigenvalue in percentage (sum_eigen_pct)

TDataServer * tds = new TDataServer("tds", "my TDS");
tds->fileDataRead("jambu.dat");
 
TPCA * tpca = new TPCA(tds, "Prof:Tran:Mena:Enfa:Cour:Toil:Rep:Somm:Tele:Lois");
tpca->compute();
 
TNtupleD *ntd = tpca->getResultNtupleD();
ntd->Scan("*");

************************************************************
*    Row   *         i *     eigen * eigen_pct * sum_eigen *
************************************************************
*        0 *         1 * 4.5886688 * 45.886688 * 45.886688 *
*        1 *         2 * 2.1198425 * 21.198425 * 67.085114 *
*        2 *         3 * 1.3209783 * 13.209783 * 80.294897 *
*        3 *         4 * 1.1952550 * 11.952550 * 92.247448 *
*        4 *         5 * 0.4684105 * 4.6841051 * 96.931553 *
*        5 *         6 * 0.1990474 * 1.9904742 * 98.922027 *
*        6 *         7 * 0.0468131 * 0.4681319 * 99.390159 *
*        7 *         8 * 0.0370651 * 0.3706510 * 99.760810 *
*        8 *         9 * 0.0239189 * 0.2391893 *       100 *
*        9 *        10 * 2.720e-16 * 2.720e-15 *       100 *
************************************************************

References _ntdResult.

getVariableResultNtupleD()

TDSNtupleD * URANIE::DataServer::TPCA::getVariableResultNtupleD ( )

inline

Return the NtupleD of results.

The TNtupleD contains :

• an iterator (i)
• the projection of origin variable onto PC
• the quality of this projection through the squared cosine
• the contribution to the definition of each and every PC

References _ntdVarResult.

printLog()

virtual void URANIE::DataServer::TPCA::printLog ( Option_t *  option = "RAS" )

virtual

Referenced by ClassImp().

setLog()

void URANIE::DataServer::TPCA::setLog ( )

inline

References _blog.

unsetLog()

void URANIE::DataServer::TPCA::unsetLog ( )

inline

References _blog.

Member Data Documentation

_blog

Bool_t URANIE::DataServer::TPCA::_blog

Boolean for edit the log.

Referenced by changeLog(), ClassImp(), getLog(), setLog(), and unsetLog().

_listOfInputAttributes

TList* URANIE::DataServer::TPCA::_listOfInputAttributes

The list of attributes.

Referenced by ClassImp().

_matCorr

TMatrixD URANIE::DataServer::TPCA::_matCorr

The matrix of Correlation.

Referenced by ClassImp().

_matEigenVectors

TMatrixD URANIE::DataServer::TPCA::_matEigenVectors

The matrix of Eigenvectors.

Referenced by ClassImp().

_ntdLoading

TNtupleD* URANIE::DataServer::TPCA::_ntdLoading

The NTupleD of Loading.

Referenced by ClassImp().

_ntdResult

TNtupleD* URANIE::DataServer::TPCA::_ntdResult

Pointer to a TDS.

The NTupleD of results (eigen values)

Referenced by ClassImp(), and getResultNtupleD().

_ntdVarResult

TDSNtupleD* URANIE::DataServer::TPCA::_ntdVarResult

The NTupleD of results (for variable interpretation)

Referenced by ClassImp(), and getVariableResultNtupleD().

_tds

URANIE::DataServer::TDataServer* URANIE::DataServer::TPCA::_tds

Referenced by ClassImp().

_vecEigenValues

TVectorD URANIE::DataServer::TPCA::_vecEigenValues

The vector of Eigenvalues.

Referenced by ClassImp().

_vecSumPctEigenValues

TVectorD URANIE::DataServer::TPCA::_vecSumPctEigenValues

The vector of sum (in percent) of the Eigenvalues.

Referenced by ClassImp().