Cox Proportional Hazards on nested factors
Hi all! I've been looking into the PH modelling and i have some question on how to properly interpret the data. To demonstrate, i modified the CA Lung Cancer dataset, to help my point along. My first question is a rather general one and it regards the PH model assumptions. Here a nice paper reviewing the issues with the published papers that use PH. They also list some strategies on how to dea...