Re: [R] survreg with frailty

2008-04-18 Thread Terry Therneau
The combination of survreg + gamma frailty = invalid model, i.e., the example that you quote. I did not realize that this had been added to the survreg help file until very recently. I will try to fix the oversight. Other, more detailed documentation states that Gaussian frailty + AIC

Re: [R] survreg() with frailty

2008-04-17 Thread Prof Brian Ripley
On Thu, 17 Apr 2008, Dimitris Rizopoulos wrote: > Dear R-users, > > I have noticed small discrepencies in the reported estimate of the > variance of the frailty by the print method for survreg() and the > 'theta' component included in the object fit: This is the print method for class "survreg.pe

[R] survreg() with frailty

2008-04-17 Thread Dimitris Rizopoulos
Dear R-users, I have noticed small discrepencies in the reported estimate of the variance of the frailty by the print method for survreg() and the 'theta' component included in the object fit: # Examples in R-2.6.2 for Windows library(survival) # version 2.34-1 (2008-03-31) # discrepancy fit1