message: Minor changes to calibrator to cover empty event sample case
diff: @@ -462,6 +462,7 @@ Bool_t AliMultSelectionCalibrator::Calibrate() {
  }else{
  cout<<"--- Processing run "<<lRunNumbers[iRun]<<" ("<<iRun<<"/"<<fNRunRanges<<"), with "<<ntot<<" events..."<<endl;
  }
  + if( ntot < 1 ){ cout<<"Sample empty! Skipping..."<<endl; continue; }
  sTree[iRun]->SetEstimate(ntot+1);
  //Cast Run Number into drawing conditions
  for(Int_t iEst=0; iEst<lNEstimatorsThis; iEst++) {
  @@ -526,6 +527,7 @@ Bool_t AliMultSelectionCalibrator::Calibrate() {
  }else{
  cout<<"--- Processing run "<<lRunNumbers[iRun]<<" ("<<iRun<<"/"<<fNRunRanges<<"), with "<<ntot<<" events..."<<endl;
  }
  + if( ntot < 1 ){ cout<<"Sample empty! Skipping..."<<endl; continue; }
  sTree[iRun]->SetEstimate(ntot+1);
  // Memory allocation: don't repeat it per estimator! only per run
  TArrayL64 index(ntot);
  