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)

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(BHH2)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/BHH2/penicillin.data.Rd_%03d_medium.png", width=480, height=480)
> ### Name: penicillin.data
> ### Title: Penicillin data
> ### Aliases: penicillin.data
> ### Keywords: datasets
> 
> ### ** Examples
> 
> data(penicillin.data)
> str(penicillin.data)
'data.frame':	20 obs. of  4 variables:
 $ blend: Factor w/ 5 levels "B1","B2","B3",..: 1 2 3 4 5 1 2 3 4 5 ...
 $ run  : int  1 4 2 1 3 3 2 1 3 4 ...
 $ treat: Factor w/ 4 levels "A","B","C","D": 1 1 1 1 1 2 2 2 2 2 ...
 $ yield: int  89 84 81 87 79 88 77 87 92 81 ...
> plot(penicillin.data)
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>