R, Survival Analysis, Bootstrapping, Lasso Regression, Cox Regression.
per predictor. What you are looking for are: Proportional distance between curves by cumulative log log. Homogeneity of residuals. The PH assumption seems to be upheld for TREAT, INF, and Ca4, but troubles me for the other two. Schoenfeld residuals look clean. Image by author. Next up, we will take