- Double_t CookLikelihood(AliTRDseedV1 *cseed, Int_t planes[4], Double_t *chi2);
- Double_t CalculateTrackLikelihood(AliTRDseedV1 *tracklets, Double_t *chi2);
- Int_t ImproveSeedQuality(AliTRDtrackingChamber **stack, AliTRDseedV1 *tracklet);
+ Double_t CookLikelihood(AliTRDseedV1 *cseed, Int_t planes[4], Double_t *chi2);
+ Double_t CalculateTrackLikelihood(AliTRDseedV1 *tracklets, Double_t *chi2);
+ Int_t ImproveSeedQuality(AliTRDtrackingChamber **stack, AliTRDseedV1 *tracklet);
+ static Float_t CalculateReferenceX(AliTRDseedV1 *tracklets);
+
+ Float_t GetChi2Y(AliTRDseedV1 *tracklets) const;
+ Float_t GetChi2Z(AliTRDseedV1 *tracklets) const;