- virtual TH1F* Project( Int_t ivar) const;
- virtual TH2F* Project( Int_t ivar1, Int_t ivar2) const;
- virtual TH3F* Project( Int_t ivar1, Int_t ivar2,Int_t ivar3) const;
+ virtual TH1D* Project( Int_t ivar) const;
+ virtual TH2D* Project( Int_t ivar1, Int_t ivar2) const;
+ virtual TH3D* Project( Int_t ivar1, Int_t ivar2,Int_t ivar3) const;