Re: [R] Brier's score for bootstrap sample (coxph)

2010-04-10 Thread Frank E Harrell Jr
paaventhan jeyaganth wrote: Dear all, How can i get brier's score for the bootsrap sample for survival analysis. this are the code i am using for the validation. f1 <- cph(Surv(time,dead ) ~ strata(x1)+strata(x2)+strata(x3), x=TRUE, y=TRUE, surv=TRUE, time.inc=12, data=new) validate(

[R] Brier's score for bootstrap sample (coxph)

2010-04-09 Thread paaventhan jeyaganth
Dear all, How can i get brier's score for the bootsrap sample for survival analysis. this are the code i am using for the validation. f1 <- cph(Surv(time,dead ) ~ strata(x1)+strata(x2)+strata(x3), x=TRUE, y=TRUE, surv=TRUE, time.inc=12, data=new) validate(f1,B=200,u=12,dxy=T) Tha