Early postnatal characteristics and differential diagnosis of choledochal cyst and cystic biliary atresia

Figure 3 Feature selection and parameter determination process of the least absolute shrinkage and selection operator regression model. A: Coefficient variation trends of feature variables under different penalty coefficients λ; B: Mean square error trends in cross-validation of the least absolute shrinkage and selection operator model under different λ values; C: Final feature coefficient weights (coefficients) determined based on the optimal λ value. GGT: γ-glutamyl transferase; TBA: Total bile acid; DBIL: Direct bilirubin; TBIL: Total bilirubin; ALT: Alanine aminotransferase; LDC: Longitudinal diameter of the cysts; TDC: Transverse diameter of the cysts.