I am trying to correlate survival with a continuous variable (for example, gene expression). I've been using the
survival package in R to deal with survival data and it seems to be very comprehensive, but there does not seem to be a way to do correlation. Is there a proper method for that?
I am concerned it's not appropriate or not possible for survival data. Maybe that is why variables are binned by group in all the survival data that I have seen.
However, there is a Cox proportional hazards regression model test that is implemented in the
coxph() function. That sounds like the most appropriate alternative. Is it?