RhoCandList eplus;

while (theAnalysis->GetEvent() && i++<nevts)  {

  theAnalysis->FillList(eplus,"ElectronAllPlus");

  for (j=0;j<eplus.GetLength();j++) {
     Int_t pointer = eplus[j]->Pointer();    // hypothetical connection
     PndPidProbability *prob = (PndPidProbability*)emc_array->At(pointer);
     Float_t proba  = prob->GetElectronPidProb();
  }

}