- AliCFDataGrid(const Char_t* name,const Char_t* title);
- AliCFDataGrid(const Char_t* name,const Char_t* title, const Int_t nVarIn, const Int_t* nBinIn, const Double_t *binLimitsIn=0);
- AliCFDataGrid(const Char_t* name,const Char_t* title,const AliCFContainer &c);
+ AliCFDataGrid(const Char_t* name,const Char_t* title, const AliCFContainer &c, Int_t step); //create data grid from container
+ AliCFDataGrid(const Char_t* name,const Char_t* title, const Int_t nVarIn, const Int_t* nBinIn); //create empty data grid to fill it yourself