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2007 Jan 20
1
aov y lme
...2001, chap 13,
example 13-1).
Briefly, there are three suppliers, four batches nested within suppliers
and three determinations of purity (response variable) on each batch. It is
a two stage nested design, where suppliers are fixed and batches are random.
y_ijk=mu+tau_i+beta_j(nested in tau_i)+epsilon_ijk
Here are the data,
purity<-c(1,-2,-2,1,
-1,-3, 0,4,
0,-4, 1, 0,
1,0,-1,0,
-2,4,0,3,
-3,2,-2,2,
2,-2,1,3,
4,0,-1,2,
0,2,2,1)
suppli<-factor(c(rep(1,12),rep(2,12),rep(3,12)))
batch<-factor(rep(c(1,2,3,4...
2007 Jan 19
0
(no subject)
...2001, chap 13,
example 13-1).
Briefly, there are three suppliers, four batches nested within suppliers
and three determinations of purity (response variable) on each batch. It is
a two stage nested design, where suppliers are fixed and batches are random.
y_ijk=mu+tau_i+beta_j(nested in tau_i)+epsilon_ijk
Here are the data,
purity<-c(1,-2,-2,1,
-1,-3, 0,4,
0,-4, 1, 0,
1,0,-1,0,
-2,4,0,3,
-3,2,-2,2,
2,-2,1,3,
4,0,-1,2,
0,2,2,1)
suppli<-factor(c(rep(1,12),rep(2,12),rep(3,12)))
batch<-factor(rep(c(1,2,3,4...