electrodes.dat {Rfwdmv}R Documentation

Electrodes data

Description

The data are measurements from machines manufacturing supposedly identical electrodes. The electrodes are shaped rather like nipples. There are five measurements on each: y1, y2 and y5 are diameters, while y3 and y4 are lengths. Fifty electrodes from each machine have been measured.

Usage

data(electrodes.dat)

Format

A data frame with 100 observations on the following 5 variables.

y1
a numeric vector, the first diameter.
y2
a numeric vector, the second diameter.
y3
a numeric vector, the first length.
y4
a numeric vector, the second length.
y5
a numeric vector, the third diameter.

Details

For reasons of commercial secrecy, the data have been transformed by subtracting constants from the variables.

Source

The data come from an unpublished University Ph.D. thesis by Kreuter. The data are given and described by Flury and Riedwyl (1998), pp. 128-132.

References

Atkinson, Riani and Cerioli (2004), p. 579-580; http://www.riani.it/arc.

Examples

data(electrodes.dat)

[Package Rfwdmv version 0.72-2 Index]