+++ /dev/null
-#ifndef ALIHFMASSFITTER_H
-#define ALIHFMASSFITTER_H
-/* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
- * See cxx source for full Copyright notice */
-
-/* $Id$ */
-
-/////////////////////////////////////////////////////////////
-//
-// AliHFMassFitter for the fit of invariant mass distribution
-// of charmed mesons
-//
-// Author: C.Bianchin, chiara.bianchin@pd.infn.it
-/////////////////////////////////////////////////////////////
-
-#include <TNamed.h>
-#include <TString.h>
-
-class TF1;
-class TNtuple;
-class TFile;
-class TList;
-class TH1F;
-class TVirtualPad;
-
-class AliHFMassFitter : public TNamed {
-
- public:
-
- enum ETypeOfBkg{ kExpo=0, kLin=1, kPol2=2, kNoBk=3, kPow=4, kPowEx=5 };
- enum ETypeOfSgn{ kGaus=0, k2Gaus=1 };
-
- AliHFMassFitter();
- AliHFMassFitter(const TH1F* histoToFit, Double_t minvalue, Double_t maxvalue, Int_t rebin=1, Int_t fittypeb=kExpo, Int_t fittypes=kGaus);
- virtual ~AliHFMassFitter();
-
- AliHFMassFitter(const AliHFMassFitter &mfit);
- AliHFMassFitter& operator=(const AliHFMassFitter &mfit);
-
- //setters
- void SetHisto(const TH1F *histoToFit);
- void SetRangeFit(Double_t minvalue, Double_t maxvalue){fminMass=minvalue; fmaxMass=maxvalue; CheckRangeFit();}
- void SetMinRangeFit(Double_t minvalue){fminMass=minvalue;printf("CheckRangeFit after SetMaxRangeFit is also set\n");}
- void SetMaxRangeFit(Double_t maxvalue){fmaxMass=maxvalue;printf("CheckRangeFit after SetMinRangeFit is also set\n");}
- void SetBinN(Int_t newbinN){fNbin=newbinN;}
- void SetType(Int_t fittypeb, Int_t fittypes);
- void SetReflectionSigmaFactor(Int_t constant) {ffactor=constant;}
- void SetInitialGaussianMean(Double_t mean) {fMass=mean;} // change the default value of the mean
- void SetInitialGaussianSigma(Double_t sigma) {fSigmaSgn=sigma;} // change the default value of the sigma
- void SetSideBands(Bool_t onlysidebands=kTRUE) {fSideBands=onlysidebands;} // consider only side bands
- void SetFixParam(Bool_t *fixpar){fFixPar=fixpar;}
- void SetDefaultFixParam();
- Bool_t SetFixThisParam(Int_t thispar,Bool_t fixpar);
- void SetFixGaussianMean(Double_t mean=1.865,Bool_t fixpar=kTRUE){SetInitialGaussianMean(mean); SetFixThisParam(fNFinalPars-2,fixpar);}
- void SetFixGaussianSigma(Double_t sigma=0.012, Bool_t fixpar=kTRUE){SetInitialGaussianSigma(sigma); SetFixThisParam(fNFinalPars-1,fixpar);}
-
- //getters
- TH1F* GetHistoClone() const; //return the histogram
- void GetRangeFit(Double_t &minvalue, Double_t &maxvalue) const {minvalue=fminMass; maxvalue=fmaxMass;}
- Double_t GetMinRangeFit()const {return fminMass;}
- Double_t GetMaxRangeFit()const {return fmaxMass;}
- Int_t GetBinN() const {return fNbin;}
- void GetFitPars(Float_t* pars) const;
- Int_t GetNFinalPars() const {return fNFinalPars;}
- void GetTypeOfFit(Bool_t &background, Int_t &typeb) const {background = fWithBkg; typeb = ftypeOfFit4Bkg;}
- Int_t GetReflectionSigmaFactor() const {return ffactor;}
- Double_t GetMean() const {return fMass;}
- Double_t GetMeanUncertainty() const {return fMassErr;}
- Double_t GetSigma()const {return fSigmaSgn;}
- Double_t GetSigmaUncertainty()const { return fSigmaSgnErr;}
- Double_t GetRawYield()const {return fRawYield;}
- Double_t GetRawYieldError()const {return fRawYieldErr;}
- Double_t GetChiSquare() const;
- Double_t GetReducedChiSquare() const;
- void GetSideBandsBounds(Int_t& lb, Int_t& hb) const;
- Bool_t* GetFixParam()const {return fFixPar;}
- Bool_t GetFixThisParam(Int_t thispar)const;
- TVirtualPad* GetPad(Double_t nsigma=3,Int_t writeFitInfo=1)const;
-
- void PrintParTitles() const;
-
- void InitNtuParam(TString ntuname="ntupar"); // initialize TNtuple to store the parameters
- void FillNtuParam(); //Fill the TNtuple with the current parameters
- TNtuple* GetNtuParam() const {return fntuParam;} // return the TNtuple
- TNtuple* NtuParamOneShot(TString ntuname="ntupar"); // the three functions above all together
- void WriteHisto(TString path="./") const; // write the histogram
- void WriteNtuple(TString path="./") const; // write the TNtuple
- void WriteCanvas(TString userIDstring="",TString path="./",Double_t nsigma=3,Int_t writeFitInfo=1,Bool_t draw=kFALSE) const; //write the canvas in a root file
- void DrawHere(TVirtualPad* pd,Double_t nsigma=3,Int_t writeFitInfo=1) const;
- void DrawFit(Double_t nsigma=3) const;
- void Reset();
-
- void IntS(Float_t *valuewitherror) const; // integral of signal given my the fit with error
- Double_t IntTot() const {return fhistoInvMass->Integral("width");} // return total integral of the histogram
- void Signal(Double_t nOfSigma,Double_t &signal,Double_t &errsignal) const; // signal in nsigma with error
- void Signal(Double_t min,Double_t max,Double_t &signal,Double_t &errsignal) const; // signal in (min, max) with error
- void Background(Double_t nOfSigma,Double_t &background,Double_t &errbackground) const; // backgournd in nsigma with error
- void Background(Double_t min,Double_t max,Double_t &background,Double_t &errbackground) const; // backgournd in (min, max) with error
- void Significance(Double_t nOfSigma,Double_t &significance,Double_t &errsignificance) const; // significance in nsigma with error
- void Significance(Double_t min,Double_t max,Double_t &significance,Double_t &errsignificance) const; // significance in (min, max) with error
-
- Double_t FitFunction4MassDistr (Double_t* x, Double_t* par);
- Double_t FitFunction4Sgn (Double_t* x, Double_t* par);
- Double_t FitFunction4Bkg (Double_t* x, Double_t* par);
- Bool_t MassFitter(Bool_t draw=kTRUE);
- Bool_t RefitWithBkgOnly(Bool_t draw=kTRUE);
- void RebinMass(Int_t bingroup=1);
- TF1* GetBackgroundFullRangeFunc(){
- return fhistoInvMass->GetFunction("funcbkgFullRange");
- }
- TF1* GetBackgroundRecalcFunc(){
- return fhistoInvMass->GetFunction("funcbkgRecalc");
- }
- TF1* GetMassFunc(){
- return fhistoInvMass->GetFunction("funcmass");
- }
- void SetUseLikelihoodFit(){fFitOption="L,";}
- void SetUseLikelihoodWithWeightsFit(){fFitOption="WL,";}
- void SetUseChi2Fit(){fFitOption="";}
-
- private:
-
- void PlotFit(TVirtualPad* pd,Double_t nsigma=3,Int_t writeFitInfo=1)const;
-
- void ComputeParSize();
- void ComputeNFinalPars();
- Bool_t SideBandsBounds();
- Bool_t CheckRangeFit();
- void AddFunctionsToHisto();
-
- TH1F* fhistoInvMass; // histogram to fit
- Double_t fminMass; // lower mass limit
- Double_t fmaxMass; // upper mass limit
- Int_t fminBinMass; // bin corresponding to fminMass
- Int_t fmaxBinMass; // bin corresponding to fmaxMass
- Int_t fNbin; // number of bins
- Int_t fParsSize; // size of fFitPars array
- Int_t fNFinalPars; // number of parameters of the final function
- Float_t* fFitPars; //[fParsSize] array of fit parameters
- Bool_t fWithBkg; // signal+background (kTRUE) or signal only (kFALSE)
- Int_t ftypeOfFit4Bkg; // 0 = exponential; 1 = linear; 2 = pol2
- Int_t ftypeOfFit4Sgn; // 0 = gaus; 1 = gaus+gaus broadened
- Int_t ffactor; // number to multiply to the sigma of the signal to obtain the reflected gaussian
- TNtuple* fntuParam; // contains fit parameters
- Double_t fMass; // signal gaussian mean value
- Double_t fMassErr; // err signal gaussian mean value
- Double_t fSigmaSgn; // signal gaussian sigma
- Double_t fSigmaSgnErr; // err signal gaussian sigma
- Double_t fRawYield; // signal gaussian integral
- Double_t fRawYieldErr; // err on signal gaussian integral
- Bool_t fSideBands; // kTRUE = only side bands considered
- Bool_t* fFixPar; //[fNFinalPars] for each par if kTRUE it is fixed in fit
- Int_t fSideBandl; // left side band limit (bin number)
- Int_t fSideBandr; // right side band limit (bin number)
- Int_t fcounter; // internal counter
- TString fFitOption; // L, LW or Chi2
- TList* fContourGraph; // TList of TGraph containing contour plots
-
- ClassDef(AliHFMassFitter,8); // class for invariant mass fit
-};
-
-#endif
-
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff