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// @(#)root/hist:$Id: TConfidenceLevel.h,v 1.2 2010/05/03 16:51:17 auterman Exp $
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// Author: Christophe.Delaere@cern.ch 21/08/2002
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#ifndef ROOT_TConfidenceLevel
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#define ROOT_TConfidenceLevel
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#ifndef ROOT_TObject
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#include "TObject.h"
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#endif
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//____________________________________________________________________
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//
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// TConfidenceLevel
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//
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// This class serves as output for the TLimit::ComputeLimit method.
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// It is created just after the time-consuming part and can be stored
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// in a TFile for further processing. It contains
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// light methods to return CLs, CLb and other interesting quantities.
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//____________________________________________________________________
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class TConfidenceLevel : public TObject {
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public:
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TConfidenceLevel();
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TConfidenceLevel(Int_t mc, bool onesided = kTRUE);
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virtual ~TConfidenceLevel();
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inline void SetTSD(Double_t in) { fTSD = in; }
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void SetTSB(Double_t * in);
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void SetTSS(Double_t * in);
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inline void SetLRS(Double_t * in) { fLRS = in; }
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inline void SetLRB(Double_t * in) { fLRB = in; }
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inline void SetBtot(Double_t in) { fBtot = in; }
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inline void SetStot(Double_t in) { fStot = in; }
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inline void SetDtot(Int_t in) { fDtot = in; }
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inline Double_t GetStatistic() const { return -2 * (fTSD - fStot); }
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void Draw(const Option_t *option="");
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Double_t GetExpectedStatistic_b(Int_t sigma = 0) const;
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Double_t GetExpectedStatistic_sb(Int_t sigma = 0) const;
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Double_t CLb(bool use_sMC = kFALSE) const;
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Double_t CLsb(bool use_sMC = kFALSE) const;
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Double_t CLs(bool use_sMC = kFALSE) const;
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Double_t GetExpectedCLb_sb(Int_t sigma = 0) const;
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Double_t GetExpectedCLb_b(Int_t sigma = 0) const;
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Double_t GetExpectedCLsb_b(Int_t sigma = 0) const;
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inline Double_t GetExpectedCLs_b(Int_t sigma = 0) const { return (GetExpectedCLsb_b(sigma) / GetExpectedCLb_b(sigma)); }
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Double_t GetAverageCLs() const;
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Double_t GetAverageCLsb() const;
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Double_t Get3sProbability() const;
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Double_t Get5sProbability() const;
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inline Int_t GetDtot() const { return fDtot; }
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inline Double_t GetStot() const { return fStot; }
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inline Double_t GetBtot() const { return fBtot; }
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inline Double_t * GetTestStatistic_SB(){ return fTSS; }
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inline Double_t * GetTestStatistic_B(){ return fTSB; }
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inline Double_t * GetLikelihoodRatio_SB(){ return fLRS; }
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inline Double_t * GetLikelihoodRatio_B(){ return fLRB; }
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inline void SetSig(Double_t * sig=0){fSig=sig;};
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inline void SetBgd(Double_t * bgd=0){fBgd=bgd;};
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inline Double_t * GetSig(){return fSig;};
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inline Double_t * GetBgd(){return fBgd;};
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private:
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// data members used for the limits calculation
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Int_t fNNMC;
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Int_t fDtot;
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Double_t fStot;
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Double_t fBtot;
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Double_t fTSD;
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Double_t fNMC;
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Double_t fMCL3S;
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Double_t fMCL5S;
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Double_t *fTSB; //[fNNMC]
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Double_t *fTSS; //[fNNMC]
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Double_t *fLRS; //[fNNMC]
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Double_t *fLRB; //[fNNMC]
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Int_t *fISS; //[fNNMC]
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Int_t *fISB; //[fNNMC]
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// cumulative probabilities for defining the bands on plots
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static const Double_t fgMCLM2S;
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static const Double_t fgMCLM1S;
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static const Double_t fgMCLMED;
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static const Double_t fgMCLP1S;
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static const Double_t fgMCLP2S;
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static const Double_t fgMCL3S1S;
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static const Double_t fgMCL5S1S;
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static const Double_t fgMCL3S2S;
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static const Double_t fgMCL5S2S;
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//The random sig and bgd events within uncertainties:
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Double_t *fSig;
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Double_t *fBgd;
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ClassDef(TConfidenceLevel, 1) // output for TLimit functions
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};
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#endif
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