Hi Emily, Use a TChain. For example, if you have produced 3 files file1.root,file2.root,file3.root containing each the ntuple "T" do TChain chain("T"); chain.Add("file1.root"); chain.Add("file2.root"); chain.Add("file3.root"); chain.Draw("some variable"); etc like for a TTree For more info, see the Users Guide. Rene Brun On Fri, 4 Jan 2002, Emily Nurse wrote: > Hello, > I am just wandering how to add the information from two ntuples. I have > had to run my Monte Carlo a few times with different random number seeds > as I have too much data to store on one ntuple and am having some > difficulties in getting all the information back together. > Any tips? > Cheers, > Emily Nurse. >
This archive was generated by hypermail 2b29 : Sat Jan 04 2003 - 23:50:37 MET