> survreg(Surv(times,censor),dist='weibull')
Error in x$terms : $ operator is invalid for atomic vectors
You need a right-hand side for the formula
survreg(Surv(times, censor) ~1, dist='weibull')
In your code the first argument was not recognized as a "formula", and the
program subsequently got very confused. The error message was not very
helpful,
unfortunately.
FYI: from an updated help page for survreg.distributions
> y<-rweibull(1000, shape=2, scale=5)
> survreg(Surv(y)~1, dist="weibull")
Coefficients:
(Intercept)
1.607516
Scale= 0.5187037
Survreg parameters are scale=1/shape, intercept=log(scale). This is because
the Weibull has been imbedded in a general location-scale framework.
Terry Therneau
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