Could you recommend an R package for estimating a (frequentist) multilevel Weibull regression model?
I need to model random intercepts, random slopes, as well as a cross-classified structure.
It seems like there is currently no "easy" solution for that. I decided to leave it for now by estimating a multilevel discrete hazard model with
glmer and a multilevel Cox PH model with
coxme (proposed by EddieMcGoldrick). With regards to the latter, I have still to figure out if implementing a cross-classified structure is possible.