Re: [R] problem with coxph

2007-12-14 Thread Charles C. Berry
On Fri, 14 Dec 2007, [EMAIL PROTECTED] wrote: Hi everyone, I encountered a problem using the coxph function for the conditional logistic regression. I am trying to do some simulations and I really don???t understand a mistake which happened maybe only 1 time among more than 1,000 simulations.

[R] problem with coxph

2007-12-14 Thread willy . wynant . chum
Hi everyone, I encountered a problem using the coxph function for the conditional logistic regression. I am trying to do some simulations and I really don’t understand a mistake which happened maybe only 1 time among more than 1,000 simulations. What appeared on the screen is the following: