/***************************************************************************** * Project: RooFit * * Package: RooFitCore * * File: $Id: RooRealSumFunc.h,v 1.10 2007/05/11 09:11:30 verkerke Exp $ * Authors: * * WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu * * DK, David Kirkby, UC Irvine, dkirkby@uci.edu * * * * Copyright (c) 2000-2005, Regents of the University of California * * and Stanford University. All rights reserved. * * * * Redistribution and use in source and binary forms, * * with or without modification, are permitted according to the terms * * listed in LICENSE (http://roofit.sourceforge.net/license.txt) * *****************************************************************************/ #ifndef ROO_REAL_SUM_FUNC #define ROO_REAL_SUM_FUNC #include "RooAbsPdf.h" #include "RooListProxy.h" #include "RooAICRegistry.h" #include "RooObjCacheManager.h" class RooRealSumFunc : public RooAbsReal { public: RooRealSumFunc(); RooRealSumFunc(const char *name, const char *title); RooRealSumFunc(const char *name, const char *title, const RooArgList &funcList, const RooArgList &coefList); RooRealSumFunc(const char *name, const char *title, RooAbsReal &func1, RooAbsReal &func2, RooAbsReal &coef1); RooRealSumFunc(const RooRealSumFunc &other, const char *name = 0); virtual TObject *clone(const char *newname) const { return new RooRealSumFunc(*this, newname); } virtual ~RooRealSumFunc(); Double_t evaluate() const; virtual Bool_t checkObservables(const RooArgSet *nset) const; virtual Bool_t forceAnalyticalInt(const RooAbsArg &arg) const { return arg.isFundamental(); } Int_t getAnalyticalIntegralWN(RooArgSet &allVars, RooArgSet &numVars, const RooArgSet *normSet, const char *rangeName = 0) const; Double_t analyticalIntegralWN(Int_t code, const RooArgSet *normSet, const char *rangeName = 0) const; const RooArgList &funcList() const { return _funcList; } const RooArgList &coefList() const { return _coefList; } void printMetaArgs(std::ostream &os) const; virtual std::list *binBoundaries(RooAbsRealLValue & /*obs*/, Double_t /*xlo*/, Double_t /*xhi*/) const; virtual std::list *plotSamplingHint(RooAbsRealLValue & /*obs*/, Double_t /*xlo*/, Double_t /*xhi*/) const; Bool_t isBinnedDistribution(const RooArgSet &obs) const; void setFloor(Bool_t flag) { _doFloor = flag; } Bool_t getFloor() const { return _doFloor; } static void setFloorGlobal(Bool_t flag) { _doFloorGlobal = flag; } static Bool_t getFloorGlobal() { return _doFloorGlobal; } virtual CacheMode canNodeBeCached() const { return RooAbsArg::NotAdvised; }; virtual void setCacheAndTrackHints(RooArgSet &); protected: class CacheElem : public RooAbsCacheElement { public: CacheElem(){}; virtual ~CacheElem(){}; virtual RooArgList containedArgs(Action) { RooArgList ret(_funcIntList); ret.add(_funcNormList); return ret; } RooArgList _funcIntList; RooArgList _funcNormList; }; mutable RooObjCacheManager _normIntMgr; // The integration cache manager 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 Bool_t _doFloor; // Introduce floor at zero in pdf static Bool_t _doFloorGlobal; // Global flag for introducing floor at zero in pdf private: ClassDef(RooRealSumFunc, 3) // PDF constructed from a sum of (non-pdf) functions }; #endif