[R] Manova in R vs. SAS
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Fri Nov 9 09:03:44 CET 2001
Bill Kristan <wbkiii at citrus.ucr.edu> writes:
> While I was helping a SAS-using friend with an analysis I noticed some
> differences in the multivariate test statistics, approximate F statistics,
> and p-values in the manova function using R and proc GLM using SAS. The
> univariate coefficients are identical. Is there a reason to expect R and SAS
> to give different results?
Could you expand on wherein the difference lies?
I don't think there is more than one definition of Wilks' Lambda, but
are they testing the same hypothesis?
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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