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Re: Repost: inverting the failure function


From   Ricardo Ovaldia <[email protected]>
To   [email protected]
Subject   Re: Repost: inverting the failure function
Date   Mon, 27 Jan 2003 05:50:37 -0800 (PST)

--- burkom@com cast.net wrote:

>   I am a STATA 7.0 user with a question on survival
> data.  I've been making failure function tables with
> commands like:
> 
>       sts list, by(covariate) failure at(1 2 to 10)
> compare
> 
>   I would like to invert these failure functions
> using STATA.  In particular, I�d like to compute a
> row of values of the interpolated (or at least the
> nearest) times at which the failure function crosses
> each of a set of levels, say 0.5, 0.6,�,1.0, with a
> row like this for each of the many values of
> covariate.  

If I understand what you are wanting to do, then you
need to use the -stci- command and specify the % of
the survival time to be computed with the -p()-
option.

Best,
Ricardo.


=====
Ricardo Ovaldia, MS
Statistician 
Oklahoma City, OK

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