Inheritance diagram for AliTrackletBaseWeights:

Public Types
enum	ECalc { kProduct, kSquare, kSum, kAverage }

Public Member Functions
	AliTrackletBaseWeights ()

	AliTrackletBaseWeights (const char name, const char title="Sim. tracklet weights")

	AliTrackletBaseWeights (const AliTrackletBaseWeights &o)

virtual	~AliTrackletBaseWeights ()

AliTrackletBaseWeights &	operator= (const AliTrackletBaseWeights &o)

void	SetCalc (UChar_t mode=kProduct)

void	SetMask (UChar_t mask)

void	SetVeto (UChar_t veto)

void	SetInverse (Bool_t inv)

Bool_t	CheckTracklet (const AliAODTracklet *tracklet) const

Double_t	LookupWeight (AliAODTracklet tracklet, Double_t cent, Double_t ipz, TH2 corr=0) const

virtual Double_t	CalcWeight (AliAODTracklet tracklet, Double_t cent, Double_t ipz, TH2 corr) const =0

virtual TCollection *	Store (TCollection *parent)

virtual TCollection *	Retrieve (TCollection *in)

Bool_t	IsFolder () const

virtual void	Print (Option_t *option="") const

	ClassDef (AliTrackletBaseWeights, 1)

Public Attributes
UChar_t	fCalc

UChar_t	fMask

UChar_t	fVeto

Bool_t	fInverse

Detailed Description

Base class for tracklets weights

Definition at line 71 of file AliTrackletWeights.C.

Member Enumeration Documentation

enum AliTrackletBaseWeights::ECalc

Mode calculation

Enumerator
kProduct	Tracklet weights calculated as \[ w_{ij} = \left\{\begin{array}{cl} w_i & i=j \mbox{ good tracklets}\\ w_i w_j & i\neq j \mbox{ fake tracklets} \end{array}\right. \]
kSquare	Tracklet weights calculated as \[ w_{ij} = \sqrt{w_i w_j} = \left\{\begin{array}{cl} w_i & i=j \mbox{ good tracklets}\\ \sqrt{w_i w_j} & i\neq j \mbox{ fake tracklets} \end{array}\right. \]
kSum	Tracklet weights calculated as \[ w_{ij} = 1+(w_i-1)+(w_j-1) \]
kAverage	Tracklet weights calculated as \[ w_{ij} = 1+\frac{(w_i-1)+(w_j-1)}{2} = \frac{w_i + w_j}{2} = \left\{\begin{array}{cl} w_i & i=j \mbox{ good tracklets}\\ (w_i + w_j)/2 & i\neq j \mbox{ fake tracklets} \end{array}\right. \]

Definition at line 77 of file AliTrackletWeights.C.

Constructor & Destructor Documentation

AliTrackletBaseWeights::AliTrackletBaseWeights ( )

inline

Default constructor - ROOT I/O only

Definition at line 125 of file AliTrackletWeights.C.

AliTrackletBaseWeights::AliTrackletBaseWeights	(	const char *	name,
		const char *	title = `"Sim. tracklet weights"`
	)

inline

Named constructor

Parameters

name	Name of object
title	(optional) free-form title

Definition at line 137 of file AliTrackletWeights.C.

AliTrackletBaseWeights::AliTrackletBaseWeights ( const AliTrackletBaseWeights & o )

inline

Copy constructor

Parameters

o	Object to copy from

Definition at line 150 of file AliTrackletWeights.C.

virtual AliTrackletBaseWeights::~AliTrackletBaseWeights ( )

inlinevirtual

Destructor

Definition at line 160 of file AliTrackletWeights.C.

Member Function Documentation

virtual Double_t AliTrackletBaseWeights::CalcWeight	(	AliAODTracklet *	tracklet,
		Double_t	cent,
		Double_t	ipz,
		TH2 *	corr
	)		const

pure virtual

Calculate the weight of a tracklet. This member function must be overloaded.

Parameters

tracklet	Tracklet
cent	Centrality
ipz	Interaction point Z coordinate
corr	Optional histogram to fill with correlation of weights

Returns: The weight

Implemented in AliTrackletDeltaWeights, and AliTrackletPtPidStrWeights.

Referenced by LookupWeight().

Bool_t AliTrackletBaseWeights::CheckTracklet ( const AliAODTracklet * tracklet ) const

inline

Check if tracklet is to be reweighed according to mask and veto

Parameters

tracklet Tracklet

Returns: true if to be weighed, false otherwise

Definition at line 254 of file AliTrackletWeights.C.

Referenced by LookupWeight().

AliTrackletBaseWeights::ClassDef	(	AliTrackletBaseWeights	,
		1
	)

Bool_t AliTrackletBaseWeights::IsFolder ( ) const

inline

Returns: always true

Definition at line 343 of file AliTrackletWeights.C.

Double_t AliTrackletBaseWeights::LookupWeight	(	AliAODTracklet *	tracklet,
		Double_t	cent,
		Double_t	ipz,
		TH2 *	corr = `0`
	)		const

inline

Find the tracklet weight

Parameters

tracklet	Tracklet
cent	Centrality
ipz	Interaction point Z coordinate
corr	Optional histogram to fill with correlation of weights

Returns: The weight

Definition at line 278 of file AliTrackletWeights.C.

AliTrackletBaseWeights& AliTrackletBaseWeights::operator= ( const AliTrackletBaseWeights & o )

inline

Assignment operator

Parameters

o	Object to assign from

Returns: Reference to this object

Definition at line 169 of file AliTrackletWeights.C.

Referenced by AliTrackletPtPidStrWeights::operator=(), and AliTrackletDeltaWeights::operator=().

virtual void AliTrackletBaseWeights::Print ( Option_t * option = "" ) const

inlinevirtual

Print information on reweights

Parameters

option Not used

Reimplemented in AliTrackletDeltaWeights, and AliTrackletPtPidStrWeights.

Definition at line 349 of file AliTrackletWeights.C.

Referenced by AliTrackletPtPidStrWeights::Print(), AliTrackletDeltaWeights::Print(), and AliTrackletAODWeightedMCdNdeta::Print().

virtual TCollection* AliTrackletBaseWeights::Retrieve ( TCollection * in )

inlinevirtual

Retrieve weights from a collection

Parameters

in	Input collection

Returns: Container read from or null

Reimplemented in AliTrackletPtPidStrWeights.

Definition at line 326 of file AliTrackletWeights.C.

Referenced by AliTrackletPtPidStrWeights::Retrieve().

void AliTrackletBaseWeights::SetCalc ( UChar_t mode = kProduct )

inline

Set the mode for calculating the weight of a tracklet. A tracklet consist of two clusters with labels \( i\) and \( j\). A weight ( \( w_i\) and \( w_j\)) is assigned to each of the particles corresponding to the tracks with these labels. The weight is calculated from the particle species and transverse momentum of the primary mother particle of the tracks \( i\) and \( j\). The weight of a tracklet can then be calculated in four different ways

Product

\[ w = \left\{\begin{array}{cl} w_i & \mbox{for} i=j\\ w_i w_j & \mbox{for} i\neq j\\ \end{array}\right.\quad, \]

Square root of product of weights

\[ w = \left\{\begin{array}{cl} w_i & \mbox{for} i=j\\ \sqrt(w_i w_j) & \mbox{for} i\neq j\\ \end{array}\right.\quad, \]

Sum of weights

\[ w = 1 + \left\{\begin{array}{cl} 2(w_i-1) & \mbox{for} i=j\\ (w_i-1) + (w_j-1) & \mbox{for} i\neq j\\ \end{array}\right.\quad, \]

Average of weights

\[ w = 1 + \left\{\begin{array}{cl} (w_i-1) & \mbox{for} i=j\\ ((w_i-1) + (w_j-1))/2 & \mbox{for} i\neq j\\ \end{array}\right.\quad. \]

Parameters

mode	Whether to take square root or not

Definition at line 226 of file AliTrackletWeights.C.

void AliTrackletBaseWeights::SetInverse ( Bool_t inv )

inline

Inverse the weights calculated. That is, if this option is enabled, then the weight used is \(1/w\) where \(w\) is the normal weight.

Parameters

inv	If true, inverse weights

Definition at line 246 of file AliTrackletWeights.C.

void AliTrackletBaseWeights::SetMask ( UChar_t mask )

inline

Set the tracklet mask

Parameters

mask	Mask to use

Definition at line 232 of file AliTrackletWeights.C.

Referenced by MakeRuben().

void AliTrackletBaseWeights::SetVeto ( UChar_t veto )

inline

Set the tracklet veto

Parameters

veto	Veto to use

Definition at line 238 of file AliTrackletWeights.C.

Referenced by MakeRuben().

virtual TCollection* AliTrackletBaseWeights::Store ( TCollection * parent )

inlinevirtual

Store values

Parameters

parent Parent container

Reimplemented in AliTrackletPtPidStrWeights.

Definition at line 308 of file AliTrackletWeights.C.

Referenced by AliTrackletPtPidStrWeights::Store().

Member Data Documentation

UChar_t AliTrackletBaseWeights::fCalc

Definition at line 360 of file AliTrackletWeights.C.

Referenced by AliTrackletPtPidStrWeights::CalcWeight(), operator=(), Print(), Retrieve(), SetCalc(), and Store().

Bool_t AliTrackletBaseWeights::fInverse

Definition at line 363 of file AliTrackletWeights.C.

Referenced by LookupWeight(), operator=(), and SetInverse().

UChar_t AliTrackletBaseWeights::fMask

Definition at line 361 of file AliTrackletWeights.C.

Referenced by CheckTracklet(), operator=(), Print(), Retrieve(), SetMask(), and Store().

UChar_t AliTrackletBaseWeights::fVeto

Definition at line 362 of file AliTrackletWeights.C.

Referenced by CheckTracklet(), operator=(), Print(), Retrieve(), SetVeto(), and Store().

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

PWGLF/FORWARD/analysis2/dndeta/tracklets3/AliTrackletWeights.C

Public Types

Public Member Functions

Public Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation