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6bcacaf1 | 1 | |
ba06aaec | 2 | #ifndef ALIPERFANALYZEINVPT_H |
3 | #define ALIPERFANALYZEINVPT_H | |
acb9d358 | 4 | |
ba06aaec | 5 | //---------------------------------------------------------------------------------------------------- |
6 | // Class to analyse output of AliPerformancePtCalib.cxx and AliPerformancePtCalibMC.cxx: | |
7 | // Projection of 1/pt vs theta and vs phi resp. histoprams will be fitted with either | |
8 | // polynomial or gaussian fit function to extract minimum position of 1/pt. | |
9 | // Fit options and theta, phi bins can be set by user. | |
10 | // Attention: use the Set* functions of AliPerformancePtCalib.h and AliPerformancePtCalibMC.h | |
11 | // when running AliPerformancePtCalib*::Analyse(). | |
12 | // | |
13 | // Author: S. Schuchmann 11/13/2009 | |
14 | //---------------------------------------------------------------------------------------------------- | |
acb9d358 | 15 | |
16 | class TNamed; | |
17 | class TString; | |
18 | class TList; | |
ba06aaec | 19 | class TF1; |
acb9d358 | 20 | class TH1F; |
21 | class TH2F; | |
ba06aaec | 22 | class TH3F; |
acb9d358 | 23 | class TGraphErrors; |
ba06aaec | 24 | //class TMath; |
25 | class TH1D; | |
26 | class TH2D; | |
27 | class TCanvas; | |
28 | class TObjArray; | |
29 | ||
acb9d358 | 30 | |
31 | class AliPerfAnalyzeInvPt : public TNamed { | |
32 | ||
ba06aaec | 33 | public: |
34 | AliPerfAnalyzeInvPt(); | |
35 | AliPerfAnalyzeInvPt(Char_t* name, Char_t* title); | |
acb9d358 | 36 | virtual ~AliPerfAnalyzeInvPt(){;} |
ba06aaec | 37 | void InitGraphs(Double_t *binsXTheta,Double_t *fitParamTheta,Double_t *errFitParamTheta,Double_t *binsXPhi,Double_t *fitParamPhi,Double_t *errFitParamPhi); |
acb9d358 | 38 | void InitFitFcn(); |
ba06aaec | 39 | void StartAnalysis(const TH2F *histThetaInvPt, const TH2F *histPhiInvPt, TObjArray* aFolderObj); |
40 | void SetProjBinsPhi(const Double_t *pBins,const Int_t sizep); | |
41 | void SetProjBinsTheta(const Double_t *tBins, const Int_t sizet); | |
42 | void SetMakeFitOption(const Bool_t setGausFit, const Double_t exclusionR,const Double_t fitR ); | |
6bcacaf1 | 43 | void SetDoRebin(const Int_t rebin){if(rebin) {fDoRebin = kTRUE; fRebin = rebin;}} |
acb9d358 | 44 | |
ba06aaec | 45 | protected: |
46 | Double_t fThetaBins[100];// array of theta bins for projection and fit | |
47 | Double_t fPhiBins[100];// array of phi bins for projection and fit | |
acb9d358 | 48 | |
ba06aaec | 49 | Int_t fNThetaBins;// number of theta bins for projection and fit |
50 | Int_t fNPhiBins; // number of phi bins for projection and fit | |
51 | Double_t fRange;// fit range of 1/pt spectrum | |
52 | Double_t fExclRange ;// range of exlusion of points around 0 when fitting 1/pt | |
53 | Bool_t fFitGaus;// set this flag for usage of gaussian fit function instead of polynomial (default) | |
6bcacaf1 | 54 | Bool_t fDoRebin; |
55 | Int_t fRebin; | |
ba06aaec | 56 | // projection histos |
57 | TH1F *fHistFitTheta[100];// projection histos for analysis in theta bins | |
58 | TH1F *fHistFitPhi[100];// projection histos for analysis in phi bins | |
acb9d358 | 59 | |
ba06aaec | 60 | //histos for copy of input histos |
61 | TH2F *fHistH2InvPtTheta; // for copy of input histos | |
62 | TH2F *fHistH2InvPtPhi; // for copy of input histos | |
63 | ||
64 | //graphs for displaying the fit parameters (minimum position of 1/pt and error) | |
65 | TGraphErrors *fGrMinPosTheta; | |
66 | TGraphErrors *fGrMinPosPhi; | |
acb9d358 | 67 | |
68 | ||
69 | ||
ba06aaec | 70 | private: |
71 | //fit functions | |
72 | TF1 *fFitMinPos;//fit function for first fit with polynomial | |
73 | TF1 *fFitMinPosRejP;//fit function for second fit with polynomial to improve result | |
74 | TF1 *fFitInvGauss;//fit functionfor first fit with gaussian | |
75 | TF1 *fFitInvGaussRejP;//fit function for second fit with gaussian to improve result | |
acb9d358 | 76 | |
ba06aaec | 77 | // infput for fit functions |
78 | static Double_t Polynomial(Double_t *x, const Double_t *par); | |
79 | static Double_t PolynomialRejP(Double_t *x, const Double_t *par); | |
80 | static Double_t InvGauss(Double_t *x, const Double_t *par); | |
81 | static Double_t InvGaussRejP(Double_t *x, const Double_t *par); | |
82 | ||
83 | //functions for fitting procedure | |
84 | void MakeFit(TH1F *dmproy, TF1 * fitpb, Double_t &mean, Double_t &ErrMean, Double_t &excl,Double_t &range); | |
85 | void MakeFitBetter(TH1F *dmproy, TF1 * fitpb2, Double_t &mean, Double_t &ErrMean, Double_t &f, Double_t &excl, Double_t &range); | |
86 | void MakeFitInvGauss(TH1F *dmproy, TF1 * fitpb2, Double_t &mean, Double_t &ErrMean,Double_t &excl , Double_t &range); | |
87 | void MakeFitInvGaussBetter(TH1F *dmproy, TF1 * fitpb2, Double_t &mean, Double_t &ErrMean, Double_t &f,Double_t &excl, Double_t &range); | |
acb9d358 | 88 | |
89 | ||
90 | ||
91 | ||
ba06aaec | 92 | AliPerfAnalyzeInvPt(const AliPerfAnalyzeInvPt&); // not implemented |
93 | AliPerfAnalyzeInvPt& operator=(const AliPerfAnalyzeInvPt&); // not implemented | |
acb9d358 | 94 | |
ba06aaec | 95 | ClassDef(AliPerfAnalyzeInvPt, 1); |
acb9d358 | 96 | }; |
97 | ||
98 | #endif |