qcc (version 2.2)

orangejuice2: Orange juice data -- Part 2

Description

A full description of the problem is given in orangejuice. This dataset contains samples taken after the machine adjustment was made.

Usage

data(orangejuice)

References

Montgomery, D.C. (1991) Introduction to Statistical Quality Control, 2nd ed, New York, John Wiley & Sons, pp. 155--159.

Examples

data(orangejuice2)
orangejuice2$d <- orangejuice2$D/orangejuice2$size
attach(orangejuice2)
summary(orangejuice2)
boxplot(d ~ trial)
mark <- ifelse(trial, 1, 2)
plot(sample, d, type="b", col=mark, pch=mark)