RooLognormal.h

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 /*****************************************************************************
  * Project: RooFit                                                           *
  * @(#)root/roofit:$Id$ *
  *                                                                           *
  * RooFit Lognormal PDF                                                      *
  *                                                                           *
  * Author: Gregory Schott and Stefan Schmitz                                 *
  *                                                                           *
  *****************************************************************************/
 
#ifndef ROO_LOGNORMAL
#define ROO_LOGNORMAL
 
#include "RooAbsPdf.h"
#include "RooRealProxy.h"
 
class RooRealVar;
 
class RooLognormal : public RooAbsPdf {
public:
  RooLognormal() {} ;
  RooLognormal(const char *name, const char *title,
         RooAbsReal& _x, RooAbsReal& _m0, RooAbsReal& _k);
  RooLognormal(const RooLognormal& other, const char* name=0) ;
  virtual TObject* clone(const char* newname) const { return new RooLognormal(*this,newname); }
  inline virtual ~RooLognormal() { }
 
  Int_t getAnalyticalIntegral(RooArgSet& allVars, RooArgSet& analVars, const char* rangeName=0) const ;
  Double_t analyticalIntegral(Int_t code, const char* rangeName=0) const ;
 
  Int_t getGenerator(const RooArgSet& directVars, RooArgSet &generateVars, Bool_t staticInitOK=kTRUE) const;
  void generateEvent(Int_t code);
 
protected:
 
  RooRealProxy x ;
  RooRealProxy m0 ;
  RooRealProxy k ;
 
  Double_t evaluate() const ;
  RooSpan<double> evaluateBatch(std::size_t begin, std::size_t batchSize) const;
  
private:
 
  ClassDef(RooLognormal,1) // log-normal PDF
};
 
#endif