Fig. 2.

Variable selection by the LASSO binary logistic regression model. A coefficient profile plot was constructed against the log(lambda) sequence. a Ten variables with nonzero coefficients were selected by deriving the optimal lambda. b Following verification of the optimal parameter (lambda) in the LASSO model, we plotted the partial likelihood deviance (binomial deviance) curve versus log(lambda) and drew dotted vertical lines based on 1 standard error criteria. LASSO Least absolute shrinkage and selection operator