[S] survreg

ZHONG LI (zli@welchlink.welch.jhu.edu)
Sat, 1 Aug 1998 18:30:38 -0400 (EDT)


Hi, everyone,

I remember someone asked a question like this before, but didn't
recall what the answer is. If you have the answer, please forward
it to me, thanks.

Suppose I have a hazard model:
hi(t)=h0(t)exp(bz)
where h0(t) is assumed to be piece-wise constant, so this is a fully
parametrized hazard. Say, h0(t) has 3 break points t1,t2,t3, so there
are 4 pieces of constant hazards. I believe survreg could do the trick,
but not sure how to rearrange my data to be able to get the
correct results.

Thanks for any help!

John

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