Fig. 2
From: A machine learning–based framework for predicting postpartum chronic pain: a retrospective study

Feature selection for postpartum chronic pain 6 months after delivery with LASSO. (A) The influence of a variable entered into the model earlier is greater than that of a variable entered later. (B) Different values of λ are shown on the x-axis, and the binary deviance is shown on the y-axis. λ min to 1se indicates the acceptable variable