penicillin | R Documentation |
The production of penicillin uses a raw material, corn steep liquor, is quite variable and can only be made in blends sufficient for four runs. There are four processes, A, B, C and D, for the production.
A data frame with 20 observations on the following 3 variables.
a factor with levels A
B
C
D
a factor with levels Blend1
Blend2
Blend3
Blend4
Blend5
a numeric vector
Box, G., W. Hunter, and J. Hunter (1978). Statistics for Experimenters. New York: Wiley.
data(penicillin) ## maybe str(penicillin) ; plot(penicillin) ...
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