[R] aov for a split plot design
rab
rab at nauticom.net
Wed Mar 13 02:45:29 CET 2002
I have data with factor A between subjects and factors B*C within
subjects. The data are taken from an example in Kirk:
> kirk.sp
subject A B C response
1 1 1 1 1 3
2 1 1 1 2 4
3 1 1 2 1 7
4 1 1 2 2 7
5 2 1 1 1 6
6 2 1 1 2 5
7 2 1 2 1 8
8 2 1 2 2 8
9 3 1 1 1 3
10 3 1 1 2 4
11 3 1 2 1 7
12 3 1 2 2 9
13 4 1 1 1 3
14 4 1 1 2 3
15 4 1 2 1 6
16 4 1 2 2 8
17 5 2 1 1 1
18 5 2 1 2 2
19 5 2 2 1 5
20 5 2 2 2 10
21 6 2 1 1 2
22 6 2 1 2 3
23 6 2 2 1 6
24 6 2 2 2 10
25 7 2 1 1 2
26 7 2 1 2 4
27 7 2 2 1 5
28 7 2 2 2 9
29 8 2 1 1 2
30 8 2 1 2 3
31 8 2 2 1 6
32 8 2 2 2 11
There are eight subjects, 2 levels of A, 2 levels of B and 2 levels of C.
How does one set up the formula in aov to properly analyze this data?
I've tried various representation using the Error function and nesting
but I can't duplicate the analysis shown in Kirk (1968, p. 302,
Experimental Design).
I would greatly appreciate any insights. I've looked at other split plot
designs in V&R but can't translate it.
Rick Bilonick
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