swissheads {fsdaR}

Swiss heads data

Description

Six dimensions in millimetres of the heads of 200 twenty year old Swiss soldiers (Flury and Riedwyl, 1988, p. 218 and also Flury, 1997, p. 6).

The data were collected to determine the variability in size and shape of heads of young men in order to help in the design of a new protection mask for the Swiss army.

Usage

data(swissheads)

Format

A data frame with 200 observations on the following 6 variables.

minimal_frontal_breadth

Minimal frontal breadth, mm

breadth_angulus_mandibulae

Breadth of angulus mandibulae, mm

true_facial_height

True facial height, mm

length_glabella_nasi

Length from glabella to apex nasi, mm

length_tragion_nasion

Length from tragion to nasion, mm

length_tragion_gnathion

Length from tragion to gnathion, mm

Source

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

References

Atkinson, A. C., Riani, M. and Cerioli, A. (2004) Exploring multivariate data with the forward search, New York: Springer-Verlag.

Examples

library(rrcov)
data(swissheads)
head(swissheads)
plot(CovMcd(swissheads), which="pairs")