penicillin.data {BHH2}

Penicillin data

Description

Penicillin yield example data set.

Usage

data(penicillin.data)

Format

A data frame with 20 observations on the following 4 variables.

blend

factor with 5 levels: B1 B2 B3 B4 B5. Blend factor used to block the experiment.

run

numeric vector. Run order within the blocking (Blend) factor.

treat

factor with levels: A B C D. The process variants called treatment.

yield

numeric vector. Experiment yield response.

Source

Box G. E. P, Hunter, W. C. and Hunter, J. S. (1978). Statistics for Experimenters. New York: Wiley.

References

Box G. E. P, Hunter, J. S. and Hunter, W. C. (2005). Statistics for Experimenters II. New York: Wiley.

Examples

data(penicillin.data)
str(penicillin.data)
plot(penicillin.data)