speedo {faraway} | R Documentation |
Speedometer cables can be noisy because of shrinkage in the plastic casing material. An experiment was conducted to find out what caused shrinkage by screening a large number of factors. The engineers started with 15 different factors.
data(speedo)
The dataset contains the following variables: (variables a-o are 2 level factors, coded "+" and "-" where "+" indicates a higher value where appropriate)
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
y
G. P. Box and S. Bisgaard and C. Fung (1988) "An explanation and critque of Taguchi's contributions to quality engineering", Quality and reliability engineering international, 4, 123-131