[R] split-split plot design with missing data

From: Elise BUISSON <elise.buisson_at_univ.u-3mrs.fr>
Date: Tue 05 Jul 2005 - 21:29:42 EST


Dear all,

I measured the survival and biomass of plants under various combinations of treatments. There are three treatments (S, T, N) with two levels each (S, s; T, t; N, n).
The 8 possible combinations
STN
STn
StN
Stn
sTN
sTn
stN
stn
are organized in a split-split plot design and replicated 12 times.

I have analyzed the survival data (%) using the aov function, which seemed to work fine.
I then tried to analyze the biomass data, but since many plants died, there is quite a bit of missing data. The aov function does not seem to allow the analyses of such data.

Can anybody help?
Yours sincerely,
Elise Buisson.



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