GblData Class Reference

Data (block) for independent scalar measurement. More...

#include <GblData.h>

Collaboration diagram for GblData:

Public Member Functions
	GblData (unsigned int aLabel, double aMeas, double aPrec)
	Create data block. More...
void	addDerivatives (unsigned int iRow, const std::vector< unsigned int > &labDer, const SMatrix55 &matDer, unsigned int iOff, const TMatrixD &derLocal, const std::vector< int > &labGlobal, const TMatrixD &derGlobal, unsigned int nLocal, const TMatrixD &derTrans)
	Add derivatives from measurement. More...
void	addDerivatives (unsigned int iRow, const std::vector< unsigned int > &labDer, const SMatrix27 &matDer, unsigned int nLocal, const TMatrixD &derTrans)
	Add derivatives from kink. More...
void	addDerivatives (const std::vector< unsigned int > &index, const std::vector< double > &derivatives)
	Add derivatives from external seed. More...
void	setPrediction (const VVector &aVector)
	Calculate prediction for data from fit (by GblTrajectory::fit).
double	setDownWeighting (unsigned int aMethod)
	Outlier down weighting with M-estimators (by GblTrajectory::fit). More...
double	getChi2 () const
	Calculate Chi2 contribution. More...
void	printData () const
	Print data block.
void	getLocalData (double &aValue, double &aWeight, std::vector< unsigned int > *&indLocal, std::vector< double > *&derLocal)
	Get Data for local fit. More...
void	getAllData (double &aValue, double &aErr, std::vector< unsigned int > *&indLocal, std::vector< double > *&derLocal, std::vector< int > *&labGlobal, std::vector< double > *&derGlobal)
	Get all Data for MP-II binary record. More...
void	getResidual (double &aResidual, double &aVariance, double &aDownWeight, std::vector< unsigned int > *&indLocal, std::vector< double > *&derLocal)
	Get data for residual (and errors). More...

Private Attributes
unsigned int	theLabel
	Label (of measurements point)
double	theValue
	Value (residual)
double	thePrecision
	Precision (1/sigma**2)
double	theDownWeight
	Down-weighting factor (0-1)
double	thePrediction
	Prediction from fit.
std::vector< unsigned int >	theParameters
	List of fit parameters (with non zero derivatives)
std::vector< double >	theDerivatives
	List of derivatives for fit.
std::vector< int >	globalLabels
	Labels for global derivatives.
std::vector< double >	globalDerivatives
	Global derivatives.

Detailed Description

Data (block) for independent scalar measurement.

Data (block) containing value, precision and derivatives for measurements and kinks. Created from attributes of GblPoints, used to construct linear equation system for track fit.

Definition at line 55 of file GblData.h.

Constructor & Destructor Documentation

GblData()

GblData	(	unsigned int	aLabel,
		double	aValue,
		double	aPrec
	)

Create data block.

Parameters

[in]	aLabel	Label of corresponding point
[in]	aValue	Value of (scalar) measurement
[in]	aPrec	Precision of (scalar) measurement

Definition at line 41 of file GblData.cc.

                                                                 :
    theLabel(aLabel), theValue(aValue), thePrecision(aPrec), theDownWeight(
        1.), thePrediction(0.), theParameters(), theDerivatives(), globalLabels(), globalDerivatives() {
 
}

Member Function Documentation

addDerivatives() [1/3]

void addDerivatives	(	const std::vector< unsigned int > &	index,
		const std::vector< double > &	derivatives
	)

Add derivatives from external seed.

Add (non-zero) derivatives to data block. Fill list of labels of used fit parameters.

Parameters

[in]	index	Labels for derivatives
[in]	derivatives	Derivatives (vector)

Definition at line 142 of file GblData.cc.

addDerivatives() [2/3]

void addDerivatives	(	unsigned int	iRow,
		const std::vector< unsigned int > &	labDer,
		const SMatrix27 &	matDer,
		unsigned int	extOff,
		const TMatrixD &	extDer
	)

Add derivatives from kink.

Add (non-zero) derivatives to data block. Fill list of labels of used fit parameters.

Parameters

[in]	iRow	Row index (0-1) in 2D kink
[in]	labDer	Labels for derivatives
[in]	matDer	Derivatives (matrix) 'kink vs track fit parameters'
[in]	extOff	Offset for external parameters
[in]	extDer	Derivatives for external Parameters

Definition at line 111 of file GblData.cc.

addDerivatives() [3/3]

void addDerivatives	(	unsigned int	iRow,
		const std::vector< unsigned int > &	labDer,
		const SMatrix55 &	matDer,
		unsigned int	iOff,
		const TMatrixD &	derLocal,
		const std::vector< int > &	labGlobal,
		const TMatrixD &	derGlobal,
		unsigned int	extOff,
		const TMatrixD &	extDer
	)

Add derivatives from measurement.

Add (non-zero) derivatives to data block. Fill list of labels of used fit parameters.

Parameters

[in]	iRow	Row index (0-4) in up to 5D measurement
[in]	labDer	Labels for derivatives
[in]	matDer	Derivatives (matrix) 'measurement vs track fit parameters'
[in]	iOff	Offset for row index for additional parameters
[in]	derLocal	Derivatives (matrix) for additional local parameters
[in]	labGlobal	Labels for additional global (MP-II) parameters
[in]	derGlobal	Derivatives (matrix) for additional global (MP-II) parameters
[in]	extOff	Offset for external parameters
[in]	extDer	Derivatives for external Parameters

Definition at line 63 of file GblData.cc.

getAllData()

void getAllData	(	double &	aValue,
		double &	aErr,
		std::vector< unsigned int > *&	indLocal,
		std::vector< double > *&	derLocal,
		std::vector< int > *&	labGlobal,
		std::vector< double > *&	derGlobal
	)

Get all Data for MP-II binary record.

Parameters

[out]	aValue	Value
[out]	aErr	Error
[out]	indLocal	List of labels of local parameters
[out]	derLocal	List of derivatives for local parameters
[out]	labGlobal	List of labels of global parameters
[out]	derGlobal	List of derivatives for global parameters

Definition at line 242 of file GblData.cc.

getChi2()

double getChi2

(

)

const

Calculate Chi2 contribution.

Returns

(down-weighted) Chi2

Definition at line 195 of file GblData.cc.

getLocalData()

void getLocalData	(	double &	aValue,
		double &	aWeight,
		std::vector< unsigned int > *&	indLocal,
		std::vector< double > *&	derLocal
	)

Get Data for local fit.

Parameters

[out]	aValue	Value
[out]	aWeight	Weight
[out]	indLocal	List of labels of used (local) fit parameters
[out]	derLocal	List of derivatives for used (local) fit parameters

Definition at line 224 of file GblData.cc.

getResidual()

void getResidual	(	double &	aResidual,
		double &	aVariance,
		double &	aDownWeight,
		std::vector< unsigned int > *&	indLocal,
		std::vector< double > *&	derLocal
	)

Get data for residual (and errors).

Parameters

[out]	aResidual	Measurement-Prediction
[out]	aVariance	Variance (of measurement)
[out]	aDownWeight	Down-weighting factor
[out]	indLocal	List of labels of used (local) fit parameters
[out]	derLocal	List of derivatives for used (local) fit parameters

Definition at line 261 of file GblData.cc.

setDownWeighting()

double setDownWeighting

(

unsigned int

aMethod

)

Outlier down weighting with M-estimators (by GblTrajectory::fit).

Parameters

[in]

aMethod

M-estimator (1: Tukey, 2:Huber, 3:Cauchy)

Definition at line 166 of file GblData.cc.

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

• genfit2/code2/GBL/include/GblData.h
• genfit2/code2/GBL/src/GblData.cc