Fig. 3 Feature selection using LASSO regression model(A). Tuning parameter selection by 10-fold cross-validation via minimum criteria. Partial likelihood deviance was plotted versus log(λ)(B). Coefficient profile of characteristics associated with recurrence of patients. Vertical line is shown at the optimal value with four nonzero coefficients.
Table 4 The multivariate Cox analysis of RiskScore by Lasso model.