Time to success analysis

[deleted_user]

How can I perform a time to success (not to failure) analysis using SAS?

Thanks

[Doc_Duke]

In PHREG or LIFEREG. Both do 'time to event' analysis and it is up to you to decide what an appropriate event is. They were developed in the context of survival, where the natural evenit is a 'failure,' but that is not a necessary condition to use the procedure.

[deleted_user]

I tried to use PHREG, but the Probability plot presents a curve that starts at “1” and decreases. In fact I need a curve that starts at “0” and increases.

Thanks again.

[Doc_Duke]

The analysis part is correct, you want a modified picture. Just output the data for the survival curve into a dataset, subtract the probability from 1, and plot it again. GPLOT has the options to do a step function.

[deleted_user]

Incredible simple! Thanks a lot!