RooRealSumPdf

class RooRealSumPdf : public RooAbsPdf

    protected:

      void syncFuncIntList(const RooArgSet* intSet) const
      void syncFuncNormList(const RooArgSet* normSet) const

    public:

                        RooRealSumPdf(const char* name, const char* title)
                        RooRealSumPdf(const char* name, const char* title, RooAbsReal& func1, RooAbsReal& func2, RooAbsReal& coef1)
                        RooRealSumPdf(const char* name, const char* title, const RooArgList& funcList, const RooArgList& coefList)
                        RooRealSumPdf(const RooRealSumPdf& other, const char* name = "0")
                virtual ~RooRealSumPdf()
       virtual Double_t analyticalIntegralWN(Int_t code, const RooArgSet* normSet, const char* rangeName = "0") const
         virtual Bool_t checkObservables(const RooArgSet* nset) const
         static TClass* Class()
       virtual TObject* clone(const char* newname) const
      const RooArgList& coefList() const
       virtual Double_t evaluate() const
         virtual Bool_t forceAnalyticalInt(const RooAbsArg&) const
      const RooArgList& funcList() const
          virtual Int_t getAnalyticalIntegralWN(RooArgSet& allVars, RooArgSet& numVars, const RooArgSet* normSet, const char* rangeName = "0") const
        virtual TClass* IsA() const
           virtual void ShowMembers(TMemberInspector& insp, char* parent)
           virtual void Streamer(TBuffer& b)
                   void StreamerNVirtual(TBuffer& b)

Data Members

    protected:

      RooAICRegistry _codeReg          Registry of component analytical integration codes
          RooArgSet* _lastFuncIntSet   
          RooArgSet* _lastFuncNormSet  
         RooArgList* _funcIntList      !
         RooArgList* _funcNormList     !
              Bool_t _haveLastCoef     
        RooListProxy _funcList         List of component FUNCs
        RooListProxy _coefList         List of coefficients
          TIterator* _funcIter         ! Iterator over FUNC list
          TIterator* _coefIter         ! Iterator over coefficient list

 Dummy constructor

 Special constructor with two functions and one coefficient

 Constructor from list of functions and list of coefficients.
 Each func list element (i) is paired with coefficient list element (i).
 The number of coefficients must be one less than to the number of functions,

 All functions and coefficients must inherit from RooAbsReal.

 Copy constructor

 Destructor

 Calculate the current value

 Check if FUNC is valid for given normalization set.
 Coeffient and FUNC must be non-overlapping, but func-coefficient
 pairs may overlap each other

 For the moment, coefficients may not be dependents or derive
 from dependents

{
 Handle trivial no-integration scenario
if (allVars.getSize()==0) return 0 ;
if (_forceNumInt) return 0 ;

 Select subset of allVars that are actual dependents
RooArgSet* allDeps = getObservables(allVars) ;
RooArgSet* normSet = normSet2 ? getObservables(normSet2) : 0 ;

_funcIter->Reset() ;
_coefIter->Reset() ;

   cout << "allDeps = " << allDeps << " " ; allDeps->Print("1") ;
   cout << "normSet = " ; if (normSet) normSet->Print("1") ; else cout << "<none>" << endl ;