Development and validation of machine learning nomograms for predicting survival in stage IV pancreatic cancer: A retrospective study

Figure 3 Feature selection based on Least Absolute Shrinkage and Selection Operator regression. A: Curve of Least Absolute Shrinkage and Selection Operator (LASSO) regression coefficients with changing Log (λ) for overall survival (OS); B: Curve of 10-fold cross-validated C-index with changing Log (λ) for OS; C: Curve of LASSO regression coefficients with changing Log (λ) for cancer-specific survival (CSS); D: Curve of 10-fold cross-validated C-index with changing Log (λ) for CSS.