I am using AOV and I am not sure if my model structure is correct for the
repeated measures.
I want to verify if there is a interaction of a random factor(block) with
fixed factors(veget,fruit, time,)
> model<-aov(trackarcsin~veget*fruit*time*block
> +Error(block/(veget*fruit)),data=mice)
Because it is repeated measures do I have to use an error term for that?
here is my experimental design
My experiment consists of manipulating fruits (F) and vegetation (V) to two
levels
each(intact (I) or removed (R)
VIFR
VRFI
VIFI
VRFR
============================
summary(model<-aov(trackarcsin~veget*fruit*time*block
+Error(block/(veget*fruit)),data=mice) )
Error: block
Df Sum Sq Mean Sq
block 2 2804.2 1402.1
Error: block:veget
Df Sum Sq Mean Sq
veget 1 537.66 537.66
veget:block 2 19.69 9.85
Error: block:fruit
Df Sum Sq Mean Sq
fruit 1 79.417 79.417
fruit:block 2 204.688 102.344
Error: block:veget:fruit
Df Sum Sq Mean Sq
veget:fruit 1 31.053 31.053
veget:fruit:block 2 88.472 44.236
Error: Within
Df Sum Sq Mean Sq
time 14 3160.61 225.76
veget:time 14 554.85 39.63
fruit:time 14 336.02 24.00
time:block 28 1306.89 46.67
veget:fruit:time 14 623.75 44.55
veget:time:block 28 584.31 20.87
fruit:time:block 28 1401.77 50.06
veget:fruit:time:block 28 810.79 28.96
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