[R] observed power

Peter Dalgaard BSA p.dalgaard at biostat.ku.dk
Fri Jan 26 16:29:03 CET 2001

"Mark M. Span" <span at psy.uva.nl> writes:

> Is there a way to obtain the observed power of an aov()?
> I perform an aov with one between and one within factor, and would like to
> know the observed power of the tests, both for the main effect and the
> interaction. I found the package 'hpower', but sense there is a more
> convenient possibility. Is there?
> thanks
> Mark M. Span

What's "observed power"? If you mean the item that SPSS has by that
name, I think you first have to convince us that that is a sensible
thing to calculate...

   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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