Hi,
I make a nested lme analysis, it is ok.
The estructure is:
lme(y~x,random=~1|x/animal)
It is no the exactly formula, but the teoretical formula. The real formula
have a new variable with x/animal group.
Now I try to construct a nested lme table like the traditional anova table to
presentation of the data.
---------------------------------------------
| Source | SS | d.f. | MS | F | P |
---------------------------------------------
a 2 1.9 0.1682
b 21
resid 657 var(resid)
---------------------------------------------
Total 2222
---------------------------------------------
For balanced data it is easy to complete. I use:
MSb = var(b)*n + var(resid)
MSa = var(a)*bn + MSb
where:
var(a), var(b) and var(resid) are the variance component get by the
VarCorr(m1).
MSb and MSa are my questions (Mean Square).
n is the number of samples in group x/animal (unbalanced)
b is the number of animal in x (balanced)
Howto calculate the n if it is different for each group?
Exist any other easy form to present the results?
Thanks
Ronaldo
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