gistfile1.py

import ROOT

ROOT.gSystem.Load("libEXOROOT")

class model:
   def __init__(self,RC_tau_1,RC_tau_2,CR_tau_1,CR_tau_2,CR_tau_3,baseline,lower_range,upper_range,size):
      self.function = ROOT.TF1('function',self,lower_range,upper_range,size)
      self.function.SetParName(0, 'number of signals')
      self.cm = ROOT.EXOChannelManager()
      self.cm.initialize(RC_tau_1,RC_tau_2,CR_tau_1,CR_tau_2,CR_tau_3)
      self.cm.set_baseline(baseline)

      def __call__(self, t, par):
         val = 0.0
         try:
            val = self.cm.signal_sum(t,par)
         except OverflowError:
            return 0.0
         return val

      def GetTF1(self):
         return self.function