Fig. 2
From: Prognostic nomogram for bladder cancer with brain metastases: a National Cancer Database analysis
Clinical trait selection via the least absolute shrinkage and selection operator (LASSO) cox regression model. a Tenfold cross-validated error (first vertical line equals the minimum error (lambda = 0.066), whereas the second vertical line shows the cross-validated error within 1 standard error of the minimum). b The profile of coefficients in the model at varying levels of penalization plotted against the log (lambda) sequence