Figure 2

Variables selection using the LASSO analysis. (A) LASSO coefficient profiles of the radiomic features. Each colored line represented the coefficient of each variables. (B) Optimal parameter (λ) selection in the LASSO analysis used tenfold cross validation. The λ_1SE on the right side of the dotted line was selected as the final equation screening criterion. LASSO, least absolute shrinkage and selection operator; SE, standard error.