[R] aov documentation page: question
Peter Dalgaard
p.dalgaard at biostat.ku.dk
Mon Oct 25 15:02:42 CEST 2004
AJ Smit <smitaj at ukzn.ac.za> writes:
> Dear all
>
> I was looking at the aov documentation page and came across the
> following which seems like a contradiction to me:
>
> " This provides a wrapper to |lm| for fitting linear models to
> balanced or unbalanced experimental designs." (I presume 'This' refers
> to aov)
>
> and
>
> "|aov| is designed for balanced designs, and the results can be hard
> to interpret without balance"
>
> So, do I use it for unbalanced designs?
If you know how to interpret the results...
In general, I would avoid it if there is unbalance in the random
effects, but some designs with unbalance in the fixed effects are
manageable.
--
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
More information about the R-help
mailing list