message: fix in charge for raw data
diff: @@ -210,7 +210,7 @@ void AliAnalysisTaskLegendreCoef::BuildBackground()
  AliAODTrack* track = static_cast<AliAODTrack*>(fAOD->GetTrack(i)); // get a track (type AliAODTrack) from the event
  if(!track) continue;
  if(!fIsMC){
  - if(abs(track->Charge())<1)continue;//only get charged tracks
  + if(track->Charge()==0)continue;//only get charged tracks
  if(track->Eta() > fEtaMax || track->Eta() < fEtaMin) continue;//eta cut
  if(track->Pt() < fPtmin|| track->Pt() > fPtmax) continue; //pt cut
  if(!fIsRunFBOnly){
  @@ -342,7 +342,7 @@ void AliAnalysisTaskLegendreCoef::BuildSignal()
  if(!track) continue;
  if(!fIsMC){
  //build signal for raw data
  - if(abs(track->Charge())<1)continue;//only get charged tracks
  + if(track->Charge()==0)continue;//only get charged tracks
  Float_t etaRaw = track->Eta();
  if(etaRaw > fEtaMax || etaRaw < fEtaMin) continue;//eta cut
  if(track->Pt() < fPtmin|| track->Pt() > fPtmax) continue; //pt cut
  