chernoff2
Mineral Contents Data (used by Chernoff)
Description
The data is a 53 by 12 matrix representing mineral analysis of a 4500
foot core drilled from a Colorado mountainside. Twelve variables
(columns) represent assays of seven mineral contents by one method and
repeated assays of five of these by a second method. Fifty-three
equally spaced specimens (rows) along the core were assayed. Specimen
ID numbers were 200 to 252.
H. Chernoff, "The Use of Faces to Represent Points in k-dimensional
Space Graphically",
Journal of the American Statistical Association,
68, No. 342, 1973, pp. 361-368.
Republished by permission of the American Statistical Association.