A data frame with 16 observations on the following 5 variables.
Blocks
a factor with levels 1 2 3 4 5 6 7 8
A
a factor with levels -1 1
B
a factor with levels -1 1
C
a factor with levels -1 1
D
a factor with levels -1 1
E
a factor with levels -1 1
F
a factor with levels -1 1
G
a factor with levels -1 1
H
a factor with levels -1 1
weight
a numeric vector containing the response