def leg4_weight(self, row): return fr_fcn.tau_jetpt_fr( row.t2JetPt ) / (1 - fr_fcn.tau_jetpt_fr( row.t2JetPt ))
def leg4_weight(self, row): return fr_fcn.tau_jetpt_fr( row.tJetPt ) / (1 - fr_fcn.tau_jetpt_fr( row.tJetPt ))