PhotoFis.C (ROOT program to analyse data)

void PhotoFis() {

  struct evt_t {

  Int_t event, ADCnum, ADCval, Lastevent, LastADCnum,LastADCval;

};

ifstream in;

in.open("189.txt");

evt_t evt;

Int_t nlines=0;

TFile *f = new TFile("PhotoFis.root","RECREATE");

TTree *tree = new TTree("PhotoFis","PhototFis data from ascii file");

tree->Branch("evt",&evt.event,"event/I:ADCnum/I:ADCval/I:Lastevent/I:LastADCnum/I:LastADCval");

evt.LastADCnum=0;

evt.LastADCval=0;

evt.Lastevent=0;

while(in.good()){

  //evt.event=nlines;

  in >> evt.ADCnum >> evt.ADCval >> evt.event ;

if(evt.event < 10) printf( " %0d %d %d \n", evt.event, evt.ADCnum, evt.ADCval );

  nlines++;

  tree->Fill();

  evt.LastADCnum=evt.ADCnum;

  evt.LastADCval=evt.ADCval;

  evt.Lastevent=evt.event;

  in >> evt.LastADCnum >> evt.LastADCval >> evt.Lastevent ;

// printf( " %0d %d %d \n", evt.LastADCnum, evt.LastADCval, evt.Lastevent );

}

tree->Print();

tree->Write();  

in.close();

delete tree;

delete f;

}