LauScfMap Class Reference

Class for representing the 4D smearing matrix for mis-reconstructed signal (self cross feed) More...

#include <LauScfMap.hh>

Public Member Functions
	LauScfMap ()
	Constructor.
virtual	~LauScfMap ()
	Destructor.
void	setHistos (const std::vector< const TH2 * > &histos)
	Construct the smearing matrix from the supplied histograms. More...
Int_t	getNumberOfBins () const
	Get the number of bins. More...
void	listBinCentres (std::vector< Double_t > &xCoords, std::vector< Double_t > &yCoords) const
	Create lists of the co-ordinates of the centres of true bins. More...
Int_t	binNumber (Double_t xCoord, Double_t yCoord) const
	Find the global bin number for the given co-ordinates. More...
const std::vector< Int_t > *	trueBins (Int_t recoBin) const
	Find which true bins contribute to the given reco bin. More...
Double_t	prob (Int_t recoBin, Int_t trueBin) const
	Probability of a true event in the given true bin migrating to the reco bin. More...
TH2 *	trueHist (Int_t trueBin)
	Retrieve the migration histogram for trueBin. More...

Private Member Functions
	LauScfMap (const LauScfMap &rhs)
	Copy constructor (not implemented)
LauScfMap &	operator= (const LauScfMap &rhs)
	Copy assignment operator (not implemented)

Private Attributes
std::vector< TH2 * >	histos_
	The vector of two-dimensional histograms.
std::map< Int_t, std::vector< Int_t > >	contribs_
	Map that links each reco global bin number and the vector of true bin indices into LauScfMap::histos_.
Int_t	nBinsX_
	Number of bins in the x-axis.
Int_t	nBinsY_
	Number of bins in the y-axis.
Int_t	numberOfBins_
	Number of bins in a 2D histogram (nBinsX_*nBinsY_)

Detailed Description

Class for representing the 4D smearing matrix for mis-reconstructed signal (self cross feed)

The smearing matrix is formed from a 2D array of 2D histograms

Definition at line 45 of file LauScfMap.hh.

Member Function Documentation

binNumber()

Int_t LauScfMap::binNumber	(	Double_t	xCoord,
		Double_t	yCoord
	)		const

Find the global bin number for the given co-ordinates.

Parameters

[in]	xCoord	the vector of x co-ordinate
[in]	yCoord	the vector of y co-ordinate

Returns

the global bin number

Definition at line 158 of file LauScfMap.cc.

getNumberOfBins()

Int_t LauScfMap::getNumberOfBins ( ) const

inline

Get the number of bins.

Returns

the number of bins

Definition at line 75 of file LauScfMap.hh.

listBinCentres()

void LauScfMap::listBinCentres	(	std::vector< Double_t > &	xCoords,
		std::vector< Double_t > &	yCoords
	)		const

Create lists of the co-ordinates of the centres of true bins.

Parameters

[out]	xCoords	the vector of x co-ordinates of the centre of each true bin
[out]	yCoords	the vector of y co-ordinates of the centre of each true bin

Definition at line 128 of file LauScfMap.cc.

prob()

Double_t LauScfMap::prob	(	Int_t	recoBin,
		Int_t	trueBin
	)		const

Probability of a true event in the given true bin migrating to the reco bin.

Parameters

[in]	recoBin	the reco global bin number
[in]	trueBin	the true bin index in the LauScfMap::histos_ storage (as provided by LauScfMap::trueBins)

Returns

the migration probability

Definition at line 179 of file LauScfMap.cc.

setHistos()

void LauScfMap::setHistos

(

const std::vector< const TH2 * > &

histos

)

Construct the smearing matrix from the supplied histograms.

The histograms should give the migration probabilities from a given true bin to a given reco bin.

These can be constructed as follows:
Each histogram contains only the events that were generated in a given true bin.
The events are plotted at their reconstructed co-ordinates.
The histogram is then normalised.

All histograms should be identically binned.
There should be as many histograms supplied as there are bins in each.
The order of the histograms in the vector should match the ROOT "global bin number" ordering.

Parameters

[in]

histos

vector of two-dimensional histograms

Definition at line 58 of file LauScfMap.cc.

trueBins()

const std::vector< Int_t > * LauScfMap::trueBins

(

Int_t

recoBin

)

const

Find which true bins contribute to the given reco bin.

Parameters

[in]

recoBin

the reco global bin number

Returns

the list of true bins that contribute (the numbers returned are not global bin numbers but the index in the LauScfMap::histos_ storage)

Definition at line 169 of file LauScfMap.cc.

trueHist()

TH2 * LauScfMap::trueHist

(

Int_t

trueBin

)

Retrieve the migration histogram for trueBin.

Parameters

[in]

trueBin

the true global bin number

Returns

the migration histogram

Definition at line 190 of file LauScfMap.cc.

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

• /home/epp/phsdba/Development/Laura++/master-dev/laura/inc/LauScfMap.hh
• /home/epp/phsdba/Development/Laura++/master-dev/laura/src/LauScfMap.cc