Flury (version 0.1-3)

electrode: Electrode Manufacture

Description

Comparison of eletrode measurements from two machines

Usage

data(electrode)

Format

A data frame with 100 observations, 50 from each machine, on the following 5 variables.

Machine

a factor with levels 1 2

X1

Total diameter

X2

Probe diameter

X3

Total height

X4

Basal height

X5

Internal diameter

Source

Flury, B. and H. Riedwyl (1988) Multivariate Statistics: A practical approach. London: Chapman and Hall

Details

See Figure 5.3.3 in Flury 1997, or the orginal figure 7.20 in Flury and Riedwyl for a better explaination of the five measurements. The actual data presented are linear transformations of the original variables (for reasons of commercial confidentiality).

References

Flury, B.D. (1997) A First Course in Multivariate Statistics New York: Springer

Examples

data(electrode)
## Not run: pairs(apply(electrode[,-1], 2, jitter, 2),
#     lower.panel = function(x, y){ points(x, y,
#     pch = unclass(electrode[,1]),
#     col = as.numeric(electrode[,1]))},
#     main = "Pairwise scatter plots for Electrode data")## End(Not run)