How to add same histogram of multiple root files (let’s say 20 or more) in a single root file? Of course I have to use for loop but I am unable to proceed .
This is how I am able to read branches (here ‘Edep’ ) of my root file ‘test.root’ .
char const* InputFileName = "test.root"; TFile* Input_file = new TFile(InputFileName); TTree* Scoring_tree = (TTree*)Input_file->Get("Scoring"); cout<<"No. of Entries: "<<Scoring_tree->GetEntries()<<endl; Double_t Edep_info; TBranch* Edep_Branch = Scoring_tree->GetBranch("Edep"); Edep_Branch->SetAddress(&Edep_info);