Automation to fill several histograms in a for loop

[mks-geant]

Hey All,

I fill multiple histograms manually, e.g.:

EDep_1->Fill(x1);
EDep_2->Fill(x2);
...
EDep_100->Fill(x100);

I am wondering if it is possible to automate and loop this instead of manually occupying multiple (100 lines)? I am not an expert in ROOT/C++ and will appreciate any assistance please?

[mks-geant]

Resolved using this post. Here is full working code:

  int numOfDetectors=5; // number of desired histograms
  
  // create histograms
  TH1F** EDep=new TH1F*[numOfDetectors];
  for (int i=0; i<numOfDetectors;i++) {
    EDep[i] = new TH1F(TString::Format("%i_EDep_gm", i+1), TString::Format("Energy deposited by gamma events in det-%i", i+1), 1000, 0., 1000.);
  }

  // fill-in histograms
  for (int i=0; i<numOfDetectors;i++){
    EDep[i]->Fill(i+10);
  }