The purpose of CRANID is to assess a skull’s probable biological ancestry, in the  broad geographical sense of the ‘ethnographic present’.

The package allows you to use multivariate methods of linear discriminant analysis and nearest neighbour discriminant analysis with 29 measurements on an individual skull. It assumes that the individual skull is within the range of variation of modern Homo sapiens. The skulls will be classified after automated comparison with 74 samples that include 3,163 skulls from around the world.

Authored by Richard Wright. http://osteoware.si.edu/comment/196