#include <AliFMDMultCuts.h>

Inheritance diagram for AliFMDMultCuts:

Public Types
enum	EMethod { kFixed, kMPVFraction, kFitRange, kLandauWidth, kLandauSigmaWidth, kProbability, kLandauSigmaAvg }

enum	{ kBad = 1024 }

Public Member Functions
	AliFMDMultCuts ()

	AliFMDMultCuts (EMethod method, Double_t fmd1i, Double_t fmd2i=-1, Double_t fmd2o=-1, Double_t fmd3i=-1, Double_t fmd3o=-1)

	AliFMDMultCuts (const AliFMDMultCuts &o)

AliFMDMultCuts &	operator= (const AliFMDMultCuts &o)

void	Reset ()

Double_t	GetMultCut (UShort_t d, Char_t r, Double_t eta, Bool_t errors) const

Double_t	GetMultCut (UShort_t d, Char_t r, Int_t etabin, Bool_t errors) const

void	SetMultCuts (Double_t fmd1i, Double_t fmd2i=-1, Double_t fmd2o=-1, Double_t fmd3i=-1, Double_t fmd3o=-1)

void	SetMPVFraction (Double_t frac=0)

void	SetNXi (Double_t nXi)

void	SetIncludeSigma (Bool_t in)

void	SetProbability (Double_t cut=1e-5)

void	Set (EMethod method, Double_t fmd1i, Double_t fmd2i=-1, Double_t fmd2o=-1, Double_t fmd3i=-1, Double_t fmd3o=-1)

void	Print (Option_t *option="") const

void	FillHistogram (TH2 *h) const

void	Output (TList l, const char name=0) const

Bool_t	Input (TList l, const char name)

EMethod	GetMethod () const

const char *	GetMethodString (Bool_t latex=false) const

Static Public Member Functions
static const char *	Method2String (EMethod method, Bool_t latex)

static EMethod	String2Method (const char *str)

Protected Member Functions
void	DepSet (const char *what, EMethod method, Double_t fmd1i, Double_t fmd2i=-1, Double_t fmd2o=-1, Double_t fmd3i=-1, Double_t fmd3o=-1)

Double_t	GetCutParam (UShort_t d, Char_t r) const

Protected Attributes
Double_t	fCuts [5]

EMethod	fMethod

Detailed Description

Cuts used when calculating the multiplicity.

We can define our cuts in four ways (in order of priorty)

Using a fixed value \( v\)- AliFMDMultCuts:: SetMultCuts
Using a fraction \( f\) of the most probably value ( \( \Delta_p\)) from the energy loss fits
Using some number \( n\) of widths ( \( \xi\)) below the most probable value ( \( \Delta_p\)) from the energy loss fits
Using some number \( n\) of widths ( \( \xi+\sigma\)) below the most probable value ( \( \Delta_p\)) from the energy loss fits
Using the \( x\) value for which \( P(x>p)\) given some cut value \( p\)
Using the lower fit range of the energy loss fits

The member function AliFMDMultCuts::Reset resets all cut values, meaning the lower bound on the fits will be used by default. This is useful to ensure a fresh start:

AliFMDMultCuts c;
c.Reset();
c.Set(AliFMDMultCuts::kLandauWidth,2);

The member function AliFMDMultCuts::GetMethod will return the method identifier for the current method employed (AliFMDMultCuts::EMethod). Like wise will the method AliFMDMultCuts::GetMethodString give a human readable string of the current method employed.

Definition at line 38 of file AliFMDMultCuts.h.

Member Enumeration Documentation

anonymous enum

Enumerator
kBad

Definition at line 50 of file AliFMDMultCuts.h.

enum AliFMDMultCuts::EMethod

Enumerator
kFixed
kMPVFraction
kFitRange
kLandauWidth
kLandauSigmaWidth
kProbability
kLandauSigmaAvg

Definition at line 41 of file AliFMDMultCuts.h.

Constructor & Destructor Documentation

AliFMDMultCuts::AliFMDMultCuts ( )

CTOR

Definition at line 19 of file AliFMDMultCuts.cxx.

AliFMDMultCuts::AliFMDMultCuts	(	EMethod	method,
		Double_t	fmd1i,
		Double_t	fmd2i = `-1`,
		Double_t	fmd2o = `-1`,
		Double_t	fmd3i = `-1`,
		Double_t	fmd3o = `-1`
	)

Set the cut for specified method.

Parameters

method	Cut method
fmd1i	Value for FMD1i
fmd2i	Value for FMD2i (if < 0, use fmd1i)
fmd2o	Value for FMD2o (if < 0, use fmd1i)
fmd3i	Value for FMD3i (if < 0, use fmd1i)
fmd3o	Value for FMD3o (if < 0, use fmd1i)

Definition at line 26 of file AliFMDMultCuts.cxx.

AliFMDMultCuts::AliFMDMultCuts ( const AliFMDMultCuts & o )

Copy CTOR

Parameters

o	Oject to copy from

Definition at line 39 of file AliFMDMultCuts.cxx.

Member Function Documentation

void AliFMDMultCuts::DepSet	(	const char *	what,
		EMethod	method,
		Double_t	fmd1i,
		Double_t	fmd2i = `-1`,
		Double_t	fmd2o = `-1`,
		Double_t	fmd3i = `-1`,
		Double_t	fmd3o = `-1`
	)

protected

Set the cut for specified method.

Parameters

what	What to set
method	Cut method
fmd1i	Value for FMD1i
fmd2i	Value for FMD2i (if < 0, use fmd1i)
fmd2o	Value for FMD2o (if < 0, use fmd1i)
fmd3i	Value for FMD3i (if < 0, use fmd1i)
fmd3o	Value for FMD3o (if < 0, use fmd1i)

Definition at line 84 of file AliFMDMultCuts.cxx.

Referenced by SetMPVFraction(), SetMultCuts(), SetNXi(), and SetProbability().

void AliFMDMultCuts::FillHistogram ( TH2 * h ) const

Fill a histogram with cut values. The histogram is assumed to have rings on the y axis, and \( \eta\) on the x axis.

Parameters

h	Histogram to fill

Definition at line 271 of file AliFMDMultCuts.cxx.

Referenced by AliFMDDensityCalculator::CacheMaxWeights(), and AliFMDSharingFilter::SetupForData().

Double_t AliFMDMultCuts::GetCutParam	(	UShort_t	d,
		Char_t	r
	)		const

protected

Get the cut parameter for a specific ring

Parameters

d	Detector
r	Ring

Returns: Cut parameter

Definition at line 112 of file AliFMDMultCuts.cxx.

Referenced by GetMultCut(), and Print().

EMethod AliFMDMultCuts::GetMethod ( ) const

inline

Return methid Id

Returns: method number

Definition at line 230 of file AliFMDMultCuts.h.

Referenced by AliForwardQATask::PreData().

const char * AliFMDMultCuts::GetMethodString ( Bool_t latex = false ) const

Get a string descriping the method used

Returns: String

Definition at line 219 of file AliFMDMultCuts.cxx.

Referenced by Print().

Double_t AliFMDMultCuts::GetMultCut	(	UShort_t	d,
		Char_t	r,
		Double_t	eta,
		Bool_t	errors
	)		const

Get the multiplicity cuts for a specific ring and pseudo-rapidity

Parameters

d	Detector
r	Ring
eta	pseudo-rapidity
errors	Get error on cut

Returns: Cut value

Definition at line 198 of file AliFMDMultCuts.cxx.

Referenced by FillHistogram().

Double_t AliFMDMultCuts::GetMultCut	(	UShort_t	d,
		Char_t	r,
		Int_t	etabin,
		Bool_t	errors
	)		const

Get the multiplicity cuts for a specific ring and pseudo-rapidity bin

Parameters

d	Detector
r	Ring
etabin	pseudo-rapidity bin
errors	Get error on cut

Returns: Cut value

Definition at line 127 of file AliFMDMultCuts.cxx.

Bool_t AliFMDMultCuts::Input	(	TList *	l,
		const char *	name
	)

Read in cuts stored in file

Parameters

l	List to read from
name	Name of possible sub-list

Returns: true on success

Definition at line 317 of file AliFMDMultCuts.cxx.

const char * AliFMDMultCuts::Method2String	(	EMethod	method,
		Bool_t	latex
	)

static

helper function to translate a method into a string

Parameters

method	Method identifier
latex	IF true, format for TLatex

Returns: String

Definition at line 226 of file AliFMDMultCuts.cxx.

Referenced by MultCutDrawer::DrawMethodLegend(), and GetMethodString().

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

Assignment operator

Parameters

o	Object to asing from

Returns: Reference to this object

Definition at line 47 of file AliFMDMultCuts.cxx.

void AliFMDMultCuts::Output	(	TList *	l,
		const char *	name = `0`
	)		const

Define outputs

Parameters

l	List to add to
name	Name

Definition at line 297 of file AliFMDMultCuts.cxx.

Referenced by AliFMDDensityCalculator::CreateOutputObjects(), and AliFMDSharingFilter::CreateOutputObjects().

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

Print information

Parameters

option Not used

Definition at line 367 of file AliFMDMultCuts.cxx.

Referenced by AliFMDSharingFilter::Print(), and AliFMDDensityCalculator::Print().

void AliFMDMultCuts::Reset ( )

Reset all cuts to default value.

Definition at line 56 of file AliFMDMultCuts.cxx.

Referenced by AliFMDMultCuts(), and Set().

void AliFMDMultCuts::Set	(	EMethod	method,
		Double_t	fmd1i,
		Double_t	fmd2i = `-1`,
		Double_t	fmd2o = `-1`,
		Double_t	fmd3i = `-1`,
		Double_t	fmd3o = `-1`
	)

Set the cut for specified method.

Note, that if method is kFixed, and only fmd1i is specified, then the outer rings cut value is increased by 20% relative to fmd1i.

Also note, that if method is kLandauWidth, and cut2 is larger than zero, then \(\sigma\) of the fits are included in the cut value.

Parameters

method	Method to use
fmd1i	Value for FMD1i
fmd2i	Value for FMD2i (if < 0, use fmd1i)
fmd2o	Value for FMD2o (if < 0, use fmd1i)
fmd3i	Value for FMD3i (if < 0, use fmd1i)
fmd3o	Value for FMD3o (if < 0, use fmd1i)

Definition at line 63 of file AliFMDMultCuts.cxx.

Referenced by AliFMDMultCuts(), AliFMDSharingFilter::AliFMDSharingFilter(), and DepSet().

void AliFMDMultCuts::SetIncludeSigma ( Bool_t in )

Set wether to includle the Gaussian sigma in cut calculation

Parameters

in	If true, use Gaussian variance

Deprecated:: Use AliFMDMultCuts::Set with kLandauSigmaWidth

Definition at line 98 of file AliFMDMultCuts.cxx.

void AliFMDMultCuts::SetMPVFraction ( Double_t frac = 0 )

inline

Set the faction of most probable value

Parameters

frac Fraction

Deprecated:: Use AliFMDMultCuts::Set

Definition at line 140 of file AliFMDMultCuts.h.

void AliFMDMultCuts::SetMultCuts	(	Double_t	fmd1i,
		Double_t	fmd2i = `-1`,
		Double_t	fmd2o = `-1`,
		Double_t	fmd3i = `-1`,
		Double_t	fmd3o = `-1`
	)

inline

Set the cuts

Parameters

fmd1i	Value for FMD1i
fmd2i	Value for FMD2i (if < 0, use fmd1i)
fmd2o	Value for FMD2o (if < 0, use fmd1i)
fmd3i	Value for FMD3i (if < 0, use fmd1i)
fmd3o	Value for FMD3o (if < 0, use fmd1i)