macaques {Ball}R Documentation

Male and Female macaque data

Description

Male and female macaque skull data. 7 landmarks in 3 dimensions, 18 individuals (9 males, 9 females)

Format

macaques$x: An array of dimension 7 \times 3 \times 18

macaques$group: A factor indicating the sex ('m' for male and 'f' for female)

Details

In an investigation into sex differences in the crania of a species of Macaca fascicularis (a type of monkey), random samples of 9 male and 9 female skulls were obtained by Paul O’Higgins (Hull-York Medical School) (Dryden and Mardia 1993). A subset of seven anatomical landmarks was located on each cranium and the three-dimensional (3D) coordinates of each point were recorded.

Note

Dryden, I.L. and Mardia, K.V. (1998). Statistical Shape Analysis, Wiley, Chichester.

References

Dryden, I. L. and Mardia, K. V. (1993). Multivariate shape analysis. Sankhya Series A, 55, 460-480.


[Package Ball version 1.3.12 Index]