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0.790852
2005 Jun 15
3
Error using newdata argument in survfit
Dear R-helpers,
To get curves for a pseudo cohort other than the one centered at the mean of
the covariates, I have been trying to use the newdata argument to survfit
with no success. Here is my model statement, the newdata and the ensuing
error. What am I doing wrong?
> summary(fit)
Call:
coxph(formula = Surv(Start, Stop, Event, type = "counting") ~
Week + LagAOO + Prior.f +