message: fix pionZ selection
diff: @@ -730,7 +730,7 @@ Bool_t AliAnalysisTaskXi1530::GoodTracksSelection() {
  Float_t b[2];
  Float_t bCov[3];
  - Double_t pionZ;
  + Double_t pionZ = -999;
  for (UInt_t it = 0; it < ntracks; it++) {
  if (fEvt->IsA() == AliESDEvent::Class()) {
  @@ -757,6 +757,7 @@ Bool_t AliAnalysisTaskXi1530::GoodTracksSelection() {
  }
  ((AliAODTrack*)track)->GetImpactParameters(b, bCov);
  Double_t pionPt = track->Pt();
  + pionZ = b[1];
  if (abs(track->Eta()) > fXi1530PionEtaCut) {
  AliInfo(Form("Eta cut failed: track eta: %f, cut: %f",
  @@ -773,7 +774,6 @@ Bool_t AliAnalysisTaskXi1530::GoodTracksSelection() {
  continue;
  }
  } // AOD Case
  - pionZ = b[1];
  Double_t fTPCNSigPion = GetTPCnSigma(track, AliPID::kPion);
  if (abs(fTPCNSigPion) > fTPCNsigXi1530PionCut_loose) {
  @@ -1347,7 +1347,7 @@ void AliAnalysisTaskXi1530::FillTracks() {
  // for DCA value
  Float_t b[2];
  Float_t bCov[3];
  - Double_t pionZ = 999;
  + Double_t pionZ = -999;
  const UInt_t ncascade = goodcascadeindices.size();
  const UInt_t ntracks = goodtrackindices.size();
  