[R] Difference in offset values in R and STATA

Hae guys, When performing a poisson regression sometimes one has to input the offset/exposure variable to account for individual time spent in a certain therapy before acquiring a certain condition of interest, whereby in r offset(log(months)) and in STATA offset(log(months)) results differ. Thereb

[R] Survuval Anaysis

Bug in R 3.6.0? (o...@free.fr) >3. Time series (trend over time) for irregular sampling dates > and multiple sites (=?UTF-8?Q?Catarina_Serra_Gon=C3=A7alves?=) >4. Re: Time series (trend over time) for irregular sampling > dates and multiple sites (Bert Gunter) >

[R] (no subject)

Hello guys this problem was never answered and I happened to come across the same problem , kindly help. This is a simple R program that I have been trying to run. I keep running into the "singular matrix" error. I end up with no sensible results. Can anyone suggest any changes or a way around this