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Data from the low grade hardwood conjoint study in chapter 6 of Design and Analysis of Experiments with R
data(hardwood)
A data frame with 12 observations on the following 5 variables.
Design
a factor with levels "RC" "AC" "OCI" "OCII"
"RC"
"AC"
"OCI"
"OCII"
Price
a numeric variable
Density
a factor with levels "Clear" "Heavy" "Medium"
"Clear"
"Heavy"
"Medium"
Guarantee
a factor with levels "1y" "Un"
"1y"
"Un"
Rating
a numeric vector
# NOT RUN { data(hardwood) # }
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