Inheritance diagram for AliTrackletWeights:

Public Types
enum	EMode { kUp = (0x1) << 14, kDown = (0x2) << 14, kDisabled = (0x4) << 14 }

enum	ECalc { kProduct, kSquare, kSum, kAverage }

typedef std::map< short, TH1D * >	PdgMap

Public Member Functions
	AliTrackletWeights ()

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

	AliTrackletWeights (const AliTrackletWeights &o)

virtual	~AliTrackletWeights ()

AliTrackletWeights &	operator= (const AliTrackletWeights &o)

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

Bool_t	AddAbundanceWeight (Short_t pdg, const TH1D *h, UShort_t mode=0)

Bool_t	AddStrangenessWeight (Short_t pdg, const TH1D *h, UShort_t mode=0)

Bool_t	SetPtWeight (const TH2D *h, UShort_t mode=0)

void	SetAbundanceMode (Short_t pdg, UShort_t mode)

void	SetStrangenessMode (Short_t pdg, UShort_t mode)

void	SetPtMode (UShort_t mode)

void	SetCalc (UChar_t mode=kProduct)

void	SetMask (UChar_t mask)

void	SetVeto (UChar_t veto)

void	Draw (Option_t *option="")

void	Print (Option_t *option="") const

Bool_t	IsFolder () const

void	Store (TCollection *out)

Bool_t	Retrieve (TCollection *in)

Double_t	GetAbundanceWeight (UShort_t apdg, Double_t cent) const

Double_t	GetStrangenessWeight (UShort_t apdg, Double_t cent) const

Protected Member Functions
virtual Double_t	LookupWeight (Double_t pT, Short_t pdg, Double_t cent) const

TH1D *	GetPdgHist (const PdgMap &m, Short_t pdg) const

virtual Double_t	GetPdgWeight (const PdgMap &m, UShort_t apdg, Double_t cent) const

Bool_t	AddPdgWeight (PdgMap &map, Short_t pdg, const TH1D *w, UShort_t mode=0)

void	SetPdgMode (PdgMap &map, Short_t pdg, UShort_t mode)

void	StoreMap (TCollection parent, const char name, PdgMap &m)

Bool_t	RetrieveMap (TCollection parent, const char name, PdgMap &m)

void	ModStack (THStack *stack)

void	PrintMap (const PdgMap &m, const char name, Option_t options="") const

void	PrintHist (const char tag, TH1 h) const

	ClassDef (AliTrackletWeights, 3)

Protected Attributes
TH2D *	fPt

PdgMap	fAbundance

PdgMap	fStrangeness

UChar_t	fCalc

UChar_t	fMask

UChar_t	fVeto

Detailed Description

Simulation weights

Definition at line 42 of file AliTrackletWeights.C.

Member Typedef Documentation

typedef std::map<short,TH1D*> AliTrackletWeights::PdgMap

Map a particle species to a weight

Definition at line 105 of file AliTrackletWeights.C.

Member Enumeration Documentation

enum AliTrackletWeights::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 59 of file AliTrackletWeights.C.

enum AliTrackletWeights::EMode

Mode of weights

Enumerator
kUp	If this bit is set, adjust weight up by error
kDown	If this bit is set, adjust weight down by error
kDisabled	If this bit is set, the weight is disabled

Definition at line 48 of file AliTrackletWeights.C.

Constructor & Destructor Documentation

AliTrackletWeights::AliTrackletWeights ( )

inline

Default constructor - ROOT I/O only

Definition at line 110 of file AliTrackletWeights.C.

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

Named constructor

Parameters

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

Definition at line 457 of file AliTrackletWeights.C.

AliTrackletWeights::AliTrackletWeights ( const AliTrackletWeights & o )

Copy constructor

Parameters

o	Object to copy from

Definition at line 469 of file AliTrackletWeights.C.

virtual AliTrackletWeights::~AliTrackletWeights ( )

inlinevirtual

Destructor

Definition at line 134 of file AliTrackletWeights.C.

Member Function Documentation

Bool_t AliTrackletWeights::AddAbundanceWeight	(	Short_t	pdg,
		const TH1D *	h,
		UShort_t	mode = `0`
	)

inline

Add a histogram to weight particle abundances

Parameters

pdg	Particle species
h	Weight of particle specie as a function of centrality.
mode	Mode of this weight (+1: up, 0: normal, -1: down)

Returns: true on success.

Definition at line 165 of file AliTrackletWeights.C.

Referenced by AliTrackletWeights(), MakeWeight(), and operator=().

Bool_t AliTrackletWeights::AddPdgWeight	(	PdgMap &	map,
		Short_t	pdg,
		const TH1D *	w,
		UShort_t	mode = `0`
	)

protected

Add a weight histogram

Parameters

map	Map of weights
pdg	Particle species
w	Weight histogram
mode	Mode of this weight (+1: up, 0: normal, -1: down)

Returns: true on success

Definition at line 507 of file AliTrackletWeights.C.

Referenced by AddAbundanceWeight(), AddStrangenessWeight(), and RetrieveMap().

Bool_t AliTrackletWeights::AddStrangenessWeight	(	Short_t	pdg,
		const TH1D *	h,
		UShort_t	mode = `0`
	)

inline

Add a histogram to weight strange particle abundances

Parameters

pdg	Particle species
h	Weight of particle specie as a function of centrality.
mode	Mode of this weight (+1: up, 0: normal, -1: down)

Returns: true on success.

Definition at line 178 of file AliTrackletWeights.C.

Referenced by AliTrackletWeights(), MakeK0S(), MakeRealistic(), MakeRuben(), MakeWeight(), and operator=().

AliTrackletWeights::ClassDef	(	AliTrackletWeights	,
		3
	)

protected

void AliTrackletWeights::Draw ( Option_t * option = "" )

Draw the weights

Parameters

option

Definition at line 793 of file AliTrackletWeights.C.

Referenced by MakeEposWeight(), MakeK0S(), MakeRealistic(), MakeRuben(), MakeWeight(), and ReadWeights().

Double_t AliTrackletWeights::GetAbundanceWeight	(	UShort_t	apdg,
		Double_t	cent
	)		const

inline

Get the abundance weight of a given particle type for a given centrality

Parameters

apdg	Absolute value of the particle PDG identifier
cent	Centrality

Returns: The associated weight

Definition at line 332 of file AliTrackletWeights.C.

TH1D * AliTrackletWeights::GetPdgHist	(	const PdgMap &	m,
		Short_t	pdg
	)		const

protected

Get the histogram associated with a particle species in a given map.

Parameters

pdg	Particle species
m	Map

Returns: Pointer to histogram or null

Definition at line 557 of file AliTrackletWeights.C.

Referenced by GetPdgWeight(), and SetPdgMode().

Double_t AliTrackletWeights::GetPdgWeight	(	const PdgMap &	m,
		UShort_t	apdg,
		Double_t	cent
	)		const

protectedvirtual

Get a PDG depedent weight.

Parameters

m	Map to look up in
apdg	The absolute value of the PDG code
cent	The event centrality

Returns: the weight associated with the particle

Definition at line 566 of file AliTrackletWeights.C.

Referenced by GetAbundanceWeight(), GetStrangenessWeight(), and LookupWeight().

Double_t AliTrackletWeights::GetStrangenessWeight	(	UShort_t	apdg,
		Double_t	cent
	)		const

inline

Get the strangeness weight of a given particle type for a given centrality

Parameters

apdg	Absolute value of the particle PDG identifier
cent	Centrality

Returns: The associated weight

Definition at line 345 of file AliTrackletWeights.C.

Bool_t AliTrackletWeights::IsFolder ( ) const

inline

Returns: always true

Definition at line 308 of file AliTrackletWeights.C.

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

virtual

Find the tracklet weight

Parameters

tracklet	Tracklet
cent	Centrality
corr	Optional histogram to fill with correlation of weights

Returns: The weight

Definition at line 610 of file AliTrackletWeights.C.

Double_t AliTrackletWeights::LookupWeight	(	Double_t	pT,
		Short_t	pdg,
		Double_t	cent
	)		const

protectedvirtual

Look-up weight based on transverse momentum pT, particle species pdf and event centrality cent.

Parameters

pT	(mother) particle transverse momentum
pdg	(mother) particle specie number
cent	Event centrality

Returns: The accumulated weight

Definition at line 586 of file AliTrackletWeights.C.

void AliTrackletWeights::ModStack ( THStack * stack )

protected

Modify a drawn stack

Parameters

stack Stack to modify

Definition at line 653 of file AliTrackletWeights.C.

Referenced by Draw().

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

Assignment operator

Parameters

o	Object to assign from

Returns: Reference to this object

Definition at line 488 of file AliTrackletWeights.C.

void AliTrackletWeights::Print ( Option_t * option = "" ) const

Print information on reweights

Parameters

option Not used

Definition at line 850 of file AliTrackletWeights.C.

Referenced by MakeEposWeight(), MakeK0S(), MakeRealistic(), MakeRuben(), MakeWeight(), and AliTrackletAODWeightedMCdNdeta::Print().

void AliTrackletWeights::PrintHist	(	const char *	tag,
		TH1 *	h
	)		const

protected

Print info on a histogram

Parameters

tag	Tag line
h	histogramT

Definition at line 869 of file AliTrackletWeights.C.

Referenced by Print(), and PrintMap().

void AliTrackletWeights::PrintMap	(	const PdgMap &	m,
		const char *	name,
		Option_t *	options = `""`
	)		const

protected

Print a map

Parameters

m	The map
name	Name of map
options	Options

Definition at line 882 of file AliTrackletWeights.C.

Referenced by Print().

Bool_t AliTrackletWeights::Retrieve ( TCollection * in )

Retrieve weights from a collection

Parameters

in	Input collection

Returns: true on success

Definition at line 734 of file AliTrackletWeights.C.

Bool_t AliTrackletWeights::RetrieveMap	(	TCollection *	parent,
		const char *	name,
		PdgMap &	m
	)

protected

Retrieve map contents from an input collection

Parameters

parent	Input collection
name	Name of collection
m	Map to add to

Returns: true on success

Definition at line 763 of file AliTrackletWeights.C.

Referenced by Retrieve().

void AliTrackletWeights::SetAbundanceMode	(	Short_t	pdg,
		UShort_t	mode
	)

inline

Set the mode of a single particle abundance weight. Mode is a bit mask of

kDisabled: The weight is disabled - i.e., will be 1
kUp: The weight is adjusted up by the error of the weight
kDown: The weight is adjusted down by the error of the weight

Parameters

pdg	Particle specie
mode	Mode of this weight (+1: up, 0: normal, -1: down)

Definition at line 203 of file AliTrackletWeights.C.

void AliTrackletWeights::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 280 of file AliTrackletWeights.C.

Referenced by AliTrackletAODWeightedMCdNdeta::SetWeightCalc().

void AliTrackletWeights::SetMask ( UChar_t mask )

inline

Set the tracklet mask

Parameters

mask	Mask to use

Definition at line 286 of file AliTrackletWeights.C.

Referenced by MakeRuben(), and AliTrackletAODWeightedMCdNdeta::SetWeightMask().

void AliTrackletWeights::SetPdgMode	(	PdgMap &	map,
		Short_t	pdg,
		UShort_t	mode
	)

protected

Set the mode of a single particle weight. Mode is a bit mask of

kDisabled: The weight is disabled - i.e., will be 1
kUp: The weight is adjusted up by the error of the weight
kDown: The weight is adjusted down by the error of the weight

Parameters

map	Map
pdg	Particle specie
mode	Mode

Definition at line 549 of file AliTrackletWeights.C.

Referenced by SetAbundanceMode(), and SetStrangenessMode().

void AliTrackletWeights::SetPtMode ( UShort_t mode )

Set the mode of a transverse momentum weight. Mode is a bit mask of

kDisabled: The weight is disabled - i.e., will be 1
kUp: The weight for \( p_T<0.05\) is adjusted by +30%
kDown: The weight for \( p_T<0.05\) is adjusted by -30%

Parameters

mode Mode

Definition at line 544 of file AliTrackletWeights.C.

Bool_t AliTrackletWeights::SetPtWeight	(	const TH2D *	h,
		UShort_t	mode = `0`
	)

Set the weight histogram per transverse momentum and centrality

Parameters

h	histogram of (centrality vs pT) weights
mode	Mode of this weight (+1: up, 0: normal, -1: down)

Returns: true on success

Definition at line 529 of file AliTrackletWeights.C.

Referenced by AliTrackletWeights(), MakeEposWeight(), MakeWeight(), and operator=().

void AliTrackletWeights::SetStrangenessMode	(	Short_t	pdg,
		UShort_t	mode
	)

inline

Set the mode of a single particle strangeness weight. Mode is a bit mask of

kDisabled: The weight is disabled - i.e., will be 1
kUp: The weight is adjusted up by the error of the weight
kDown: The weight is adjusted down by the error of the weight

Parameters

pdg	Particle specie
mode	Mode

Definition at line 218 of file AliTrackletWeights.C.

void AliTrackletWeights::SetVeto ( UChar_t veto )

inline

Set the tracklet veto

Parameters

veto	Veto to use

Definition at line 292 of file AliTrackletWeights.C.

Referenced by MakeRuben(), and AliTrackletAODWeightedMCdNdeta::SetWeightVeto().

void AliTrackletWeights::Store ( TCollection * out )

Store weights histograms in output of analysis

Parameters

out	Collection to add histograms to

Definition at line 673 of file AliTrackletWeights.C.

void AliTrackletWeights::StoreMap	(	TCollection *	parent,
		const char *	name,
		PdgMap &	m
	)

protected

Write a maps histograms to an output container

Parameters

parent	Output container
name	Name of output sub-container
m	Map of weights

Definition at line 695 of file AliTrackletWeights.C.

Referenced by Store().

Member Data Documentation

PdgMap AliTrackletWeights::fAbundance

protected

Definition at line 448 of file AliTrackletWeights.C.

Referenced by AddAbundanceWeight(), AliTrackletWeights(), Draw(), GetAbundanceWeight(), LookupWeight(), operator=(), Print(), Retrieve(), SetAbundanceMode(), and Store().

UChar_t AliTrackletWeights::fCalc

protected

Definition at line 450 of file AliTrackletWeights.C.

Referenced by LookupWeight(), operator=(), Print(), Retrieve(), SetCalc(), and Store().

UChar_t AliTrackletWeights::fMask

protected

Definition at line 451 of file AliTrackletWeights.C.

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

TH2D* AliTrackletWeights::fPt

protected

Definition at line 447 of file AliTrackletWeights.C.

Referenced by AliTrackletWeights(), Draw(), LookupWeight(), operator=(), Print(), Retrieve(), SetPtMode(), SetPtWeight(), and Store().

PdgMap AliTrackletWeights::fStrangeness

protected

Definition at line 449 of file AliTrackletWeights.C.

Referenced by AddStrangenessWeight(), AliTrackletWeights(), Draw(), GetStrangenessWeight(), LookupWeight(), operator=(), Print(), Retrieve(), SetStrangenessMode(), and Store().

UChar_t AliTrackletWeights::fVeto

protected

Definition at line 452 of file AliTrackletWeights.C.

Referenced by LookupWeight(), 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

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation