What is causing RStudio FATAL error when running test for proportional hazard assumption on a "coxme" object using function "cox.zph"?

I'm using a cox proportional hazards regression to analyze latency data, i.e. time until behavior x occurs. The model I'm running is fitted with the "coxme" package in R (which is a wrapper to the...

08 June 2021 7,819 8 View