“Object not found” error within a user defined function, eval() function?

Question

I\'m trying to write a function for a task I need to do many times (running a cox proportional hazards function over multiple imputed datasets). When I pass the necessary objec

Answer 1

Try this. You need to keep in mind that R doesn't know what's my.time and my.event. You have to parse them with quotes and then unqoute them in order to parse it into Surv

myfun<-function(dflist,time,event){
  for (i in 1:length(dflist)){
    time <- noquote(time)
    event <- noquote(event)
    out<-cch(Surv(dflist[[i]][, time], dflist[[i]][, event])~as.factor(my.det), data=dflist[[i]], 
             subcoh=~sub, id=~my.id, cohort.size=500)
    print(out)}
}   
myfun(my.list,"my.time","my.event")