Re: [R] Correlated frailty model

> I am trying to a estimate a correlated frailty model. My dataset is > made up of 4 observations. I would like to know if it is too big or > I have done some mistakes in the following code. I have used larger data sets successfully. I need to know a little bit more about our problem.

[R] Correlated frailty model

Dear R-help, I am trying to a estimate a correlated frailty model. My dataset is made up of 4 observations. I would like to know if it is too big or I have done some mistakes in the following code. group<-paste(usa$id,usa$mob) mixed.logn<-coxme(Surv(yearspan)~ south+mod, data=usa,random= ~ 1