can r merge two cox models how to combine two different cox models of proportional hazards what is cox proportional hazards can you combine two cox parametric hazards in one model? what is the cox proportional hazards model in r can you combine two cox ph models into one how to combine r proportional hazards model how to combine two cox proportionals how to combine two cox proportional hazards models into one when combining two cox proportional hazards models into one model can i combine the results of cox proportional hazards into one cox proportional hazards model? can you combine two different cox proportional hazards models in r combining cox proportional hazards into r is combining two cox proportional hazards models into one how do you combine two separate cox model can i combine two cox ph models how to combine a cox ph model into one how to combine two different cox models how to combine cox ph models what is the function of coxph in r