30s Bin

{
TFile::Open("/home/emaan/Documents/Scripts/Veritas/41584_reduced.root");
.ls
gamma->Print();
double my_ra, my_dec, my_energy, my_time;
gamma->SetBranchAddress("ra_j2000_rad",&my_ra);
gamma->SetBranchAddress("dec_j2000_rad",&my_dec);
gamma->SetBranchAddress("energy_gev",&my_energy);
gamma->SetBranchAddress("mjd",&my_time);
TTree *n = new TTree();
double thirty_s;
TBranch *l = n->Branch("thirty_s", &thirty_s, "thirty_s/D");
gamma->GetEntry(count+30);
l->Fill();
}
n->Draw("thirty_s");
}