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st: estimating sample size in observational data
I have observation data in which patients have self-selected treatment
groups. I'll analyze these data using -stcox-.
I'd like to estimate a power-sample size curve at different group sizes.
I'd I have considered the program -artsurv-, but it looks like it's
designed specifically for random allocation. Is there another way to do
this in Stata?
Pine Street Clinic
Pine Street Foundation
124 Pine Street, San Anselmo, CA 94960-2674
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