st: goodness of fit test for survival model (log-logistic AFT)

[Simon Hu <hujunsimon@gmail.com>]

Dear Statalist users,

i'm trying to do a goodness of fit test for my estimated log-logistic
AFT model.  i read some references and it suggests to plot a graph of
log(odds) againist log(t) and check whether it's a liner curve.  but i
don't know how to do that in STATA.  anyone has ideas ?

or anyone knows how to use the cox-snell residual for checking the
goodness of fit for log-logistic AFT model ?

thanks,

Simon
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