NumberCountingPdfFactory.h

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// @(#)root/roostats:$Id$
// Author: Kyle Cranmer   28/07/2008
 
/*************************************************************************
 * Copyright (C) 1995-2008, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
#ifndef RooStats_NumberCountingPdfFactory
#define RooStats_NumberCountingPdfFactory
 
#include "Rtypes.h"
 
class RooWorkspace; 
class RooRealVar; 
 
namespace RooStats{
 
   class  NumberCountingPdfFactory {
 
   public:
      // need one for expected and one for observed
      NumberCountingPdfFactory();
      virtual ~NumberCountingPdfFactory();
 
      void AddModel(Double_t* sigExp, Int_t nchan, RooWorkspace* ws, 
                    const char* pdfName = "CombinedPdf", const char* masterSignalName = "masterSignal") ; 
 
      void AddData(Double_t* mainMeas, Double_t* bkgMeas, Double_t* db, 
                   Int_t nbins, RooWorkspace* ws, const char* dsName = "NumberCountingData");
      void AddExpData(Double_t* sigExp, Double_t* bkgExp, Double_t* db, 
                      Int_t nbins, RooWorkspace* ws, const char* dsName = "ExpectedNumberCountingData");
      void AddExpDataWithSideband(Double_t* sigExp, Double_t* bkgExp, Double_t* tau, 
                                  Int_t nbins, RooWorkspace* ws, const char* dsName = "NumberCountingData");
      void AddDataWithSideband(Double_t* mainMeas, Double_t* sideband, Double_t* tau, 
                               Int_t nbins, RooWorkspace* ws, const char* dsName = "ExpectedNumberCountingData");
 
   private:
      RooRealVar* SafeObservableCreation(RooWorkspace* ws, const char* varName, Double_t value) ;
      RooRealVar* SafeObservableCreation(RooWorkspace* ws, const char* varName, Double_t value, Double_t maximum) ;
 
 
   protected:
      ClassDef(NumberCountingPdfFactory,1) // A factory specific to common number counting problems.
 
   };
}
 
#endif