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StNbdFitMaker Class Reference

Public Member Functions

void DoCentralityDetermination ()
 Default destructor. More...
void ReadData (const Char_t *data, const Char_t *glauber, const Char_t *dataHistogramName="hRefMultTpc")
 Read real data and glauber ROOT files. More...
TGraph * Fit (const Int_t nevents=1000, const TString outputFileName="")
Int_t Scan (const Int_t nevents, const Int_t nppbin, const Double_t nppmin, const Double_t nppmax, const Int_t kbin, const Double_t kmin, const Double_t kmax, const Int_t xbin, const Double_t xmin, const Double_t xmax, const Double_t efficiency=1.0, const Double_t triggerbias=1.0, const Bool_t isConstEfficiency=kTRUE)
 Find minimum chi2/NDF in (npp, k, efficiency) space. More...
void SetParameters (const Double_t npp, const Double_t k, const Double_t x, const Double_t efficiency, const Double_t triggerbias, const Bool_t isConstEfficiency)
 Set parameters.
void SetMinimumMultiplicityCut (const Double_t cut)
 Set minimum multiplicity cuts to avoid inefficiency (default is M>50)

Detailed Description

Definition at line 21 of file StNbdFitMaker.h.

Member Function Documentation

void StNbdFitMaker::DoCentralityDetermination ( )

Default destructor.

Switch on centrality calculation (default is OFF)

Definition at line 59 of file StNbdFitMaker.cxx.

TGraph * StNbdFitMaker::Fit ( const Int_t  nevents = 1000,
const TString  outputFileName = "" 

Draw multiplicity distribution sampled by nevents (default is 1000 events) Do not write output ROOT file if outputFileName is blank Return TGraph, contains [0] = chi2 [1] = NDF [2] = chi2/NDF

Fit real data by simulated multiplicity distribution

Make sure the refmult and Ncoll_Npart histograms have benn opened

Definition at line 326 of file StNbdFitMaker.cxx.

References StNegativeBinomial::GetK(), StNegativeBinomial::GetMultiplicity(), and StNegativeBinomial::GetX().

Referenced by Scan().

void StNbdFitMaker::ReadData ( const Char_t *  data,
const Char_t *  glauber,
const Char_t *  dataHistogramName = "hRefMultTpc" 

Read real data and glauber ROOT files.

TPC refMult

Definition at line 267 of file StNbdFitMaker.cxx.

Int_t StNbdFitMaker::Scan ( const Int_t  nevents,
const Int_t  nppbin,
const Double_t  nppmin,
const Double_t  nppmax,
const Int_t  kbin,
const Double_t  kmin,
const Double_t  kmax,
const Int_t  xbin,
const Double_t  xmin,
const Double_t  xmax,
const Double_t  efficiency = 1.0,
const Double_t  triggerbias = 1.0,
const Bool_t  isConstEfficiency = kTRUE 

Find minimum chi2/NDF in (npp, k, efficiency) space.

Loop over all (npp, k, x) to find out minimum chi2

Definition at line 465 of file StNbdFitMaker.cxx.

References Fit(), and SetParameters().

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