Survival, Cox Regression, Kaplan Meier, Weibull Distribution, Accelerated Failure Time.
Proportional Hazards Assumption (PHA) and is quite often violated. I will show you how to test for this assumption and how to deal with it if violated. In SAS, PROC PHREG is the go-to procedure for cox-regression analysis. It is the only SAS program that has the full suite of possibilities for