Diameters of rods measured by two calipers
Diameters of 14 metal rods measured once each with each of two calipers.
A data frame with 14 observations on the following 3 variables.
partindicator of which part is measured - a factor
caliperameasurement with caliper type A
caliperbmeasurement with caliper type B
This is an experiment to study the relationship between the measurements taken by the two calipers on various parts. The diameter of each part is not of interest.
Peter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)
str(caliper)
show(pl1 <-
xyplot(caliperb ~ calipera, caliper,
type = c("g","p"), aspect = "iso",
xlab = "Measurement with caliper A",
ylab = "Measurement with caliper B"))
tmd(pl1)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.