[R] AFT model time-dependent with weibull distribution

[Göran Broström]

On Sat, Aug 20, 2011 at 4:19 AM, JPF <xpfenech at gmail.com> wrote:
>
> JPF wrote:
>>
>>
>>
>> weibullaft<-aftreg(Surv(sta,time,S) ~ TDC1 + TIC1, dist="weibull",
>> data.frame=Data)
>>
>> ## aftreg gives an error when I add an ID argument... That should be used
>> for controlling for time-varying variables.
>>
>> Error in aftreg.fit(X, Y, dist, strats, offset, init, shape, id, control,
>> :
>>   *Overlapping intervals for id  2 *
>>
>> From help(aftreg): id If there are more than one spell per individual, it
>> is essential to keep spells together by the id argument. This allows for
>> time-varying covariates.
>>
>>
>
> This is solved. It gave the overlapping intervals error, but now it is
> solved: /id=ID/, just as before.
>
Good. Do you still need answers to your other questions?

G.

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-- 
Göran Broström