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uw_load1
2011 Sep 28
1
survexp with large dataframes
...ut and [unfortunately] errors. Is
there something wrong in my use of cluster in generating the
proportional hazards model, or is there some syntax to pass it into
survexp?
Mike
> dim(dev)
[1] 899876 25
> mod1 <- coxph(Surv(begin.cp, end.cp, event)
+ ~ age.sex
+ + plan_type
+ + uw_load
+ + cluster(mbr_key)
+ ,data=dev
+ )
>
> summary(mod1)
Call:
coxph(formula = Surv(begin.cp, end.cp, event) ~ age.sex + plan_type +
uw_load + cluster(mbr_key), data = dev)
n= 899876, number of events= 753324
coef exp(coef) se(coef) robust se z
Pr(>...