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Data from the Single Array Experiment in Exercise 5 of Chapter 12 in Design and Analysis of Experiments with R. The factors are in coded levels.
data(WeldS)
A data frame with 16 observations on the following 16 variables.
D
a numeric vector
H
G
A
F
GH
C
B
J
E
AC
AH
AG
e1
e2
y
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