Re: [R] Survuval Anaysis

2019-05-02 Thread peter dalgaard
Also, please do not include every single other message from a digested list!! And yes, most likely there is a linear dependency between the predictors, or the 3rd one is constant. There could be other possibilities, though. > On 2 May 2019, at 17:44 , Michael Dewey wrote: > > Without more deta

Re: [R] Survuval Anaysis

2019-05-02 Thread Michael Dewey
Without more details it is hard to answer but it is suspicious that it is dropping one of your predictors and the standard errors of the other are very large. This suggests you should investigate the joint distribution of your predictors and the events. Michael On 02/05/2019 13:37, Haddison M

[R] Survuval Anaysis

2019-05-02 Thread Haddison Mureithi
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