MyEvent.h
TFile* histFile; // histogram file
TTree *fTree; //pointer to the analyzed TTree
MyEvent() {}; // default ctr
MyEvent(char* rootFileName); // ctr with root file name
~MyEvent(); // default dtr
void StartWithEvent(Int_t event); // start next Go with this event
void Init(char* rootFileName); // re-init with this root file
void HClr(); // Reset() all user histograms
void AllHistDelete(); // delete all user histograms
void HistDefine(); // define user histograms
void MakeHistList(); // make list of user histograms
void Rewind(); // reset for next Go to start at beginning of file
void Go(Int_t numEvents=100000); // loop over events
Int_t m_StartEvent; // starting event
TObjArray* HistList; // list of user histograms