RooGenericPdf

class description - source file - inheritance tree (.pdf)

class RooGenericPdf : public RooAbsPdf

Inheritance Chart:

TObject

TNamed

RooPrintable

RooAbsArg

RooAbsReal

RooAbsPdf

RooGenericPdf


    protected:

      virtual Double_t evaluate() const
        virtual Bool_t isValidReal(Double_t value, Bool_t printError) const
        virtual Bool_t redirectServersHook(const RooAbsCollection& newServerList, Bool_t mustReplaceAll, Bool_t nameChange, Bool_t isRecursive)
                Bool_t setFormula(const char* formula)

    public:

                       RooGenericPdf()
                       RooGenericPdf(const char* name, const char* title, const RooArgList& dependents)
                       RooGenericPdf(const char* name, const char* title, const char* formula, const RooArgList& dependents)
                       RooGenericPdf(const RooGenericPdf& other, const char* name = "0")
               virtual ~RooGenericPdf()
        static TClass* Class()
      virtual TObject* clone(const char* newname) const
                  void dumpFormula()
       virtual TClass* IsA() const
          virtual void printToStream(ostream& os, RooPrintable::PrintOption opt = Standard, TString indent = ) const
        virtual Bool_t readFromStream(istream& is, Bool_t compact, Bool_t verbose = kFALSE)
          virtual void ShowMembers(TMemberInspector& insp, char* parent)
          virtual void Streamer(TBuffer& b)
                  void StreamerNVirtual(TBuffer& b)
          virtual void writeToStream(ostream& os, Bool_t compact) const

Data Members


    protected:

      RooListProxy _actualVars  
        RooFormula _formula     Formula engine

Class Description

 RooGenericPdf is a concrete implementation of a probability density function,
 which takes a RooArgList of servers and a C++ expression string defining how
 its value should be calculated from the given list of servers.
 A fully numerical integration is automatically performed to normalize the given
 expression. RooGenericPdf uses a RooFormula object to perform the expression evaluation

 The string expression can be any valid TFormula expression referring to the
 listed servers either by name or by their ordinal list position:

   RooGenericPdf("gen","x*y",RooArgList(x,y))  or
   RooGenericPdf("gen","@0*@1",RooArgList(x,y))

 The latter form, while slightly less readable, is more versatile because it
 doesn't hardcode any of the variable names it expects

RooGenericPdf(const char *name, const char *title, const RooArgList& dependents) : RooAbsPdf(name,title), _actualVars("actualVars","Variables used by PDF expression",this), _formula(name,title,dependents)

 Constructor with formula expression and list of input variables

RooGenericPdf(const char *name, const char *title, const char* formula, const RooArgList& dependents) : RooAbsPdf(name,title), _actualVars("actualVars","Variables used by PDF expression",this), _formula(name,formula,dependents)

RooGenericPdf(const RooGenericPdf& other, const char* name) : RooAbsPdf(other, name), _actualVars("actualVars",this,other._actualVars), _formula(other._formula)

 Copy constructor

~RooGenericPdf()

 Destructor

Double_t evaluate() const

 Calculate current value of this object

Bool_t setFormula(const char* formula)

 Change formula expression to given expression

Bool_t isValidReal(Double_t /*value*/, Bool_t /*printError*/) const

 Check if given value is valid

Bool_t redirectServersHook(const RooAbsCollection& newServerList, Bool_t mustReplaceAll, Bool_t nameChange, Bool_t /*isRecursive*/)

 Propagate server changes to embedded formula objecy

void printToStream(ostream& os, PrintOption opt, TString indent) const

 Print info about this object to the specified stream.

Bool_t readFromStream(istream& is, Bool_t compact, Bool_t /*verbose*/)

 Read object contents from given stream

void writeToStream(ostream& os, Bool_t compact) const

 Write object contents to given stream

Inline Functions

        RooGenericPdf RooGenericPdf(const RooGenericPdf& other, const char* name = "0")
             TObject* clone(const char* newname) const
                 void dumpFormula()
              TClass* Class()
              TClass* IsA() const
                 void ShowMembers(TMemberInspector& insp, char* parent)
                 void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)

Last CVS Update: v 1.27 2005/06/20 15:44:53 wverkerke

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