| Boxite {compositions} | R Documentation |
Compositions and depth of 25 specimens of boxite
Description
A mineral compositions of 25 rock specimens of boxite type. Each composition consists of the percentage by weight of five minerals, albite, blandite, cornite, daubite, endite, as well as the depth of location.
Usage
data(Boxite)
Details
A mineral compositions of 25 rock specimens of boxite type are given. Each composition consists of the percentage by weight of five minerals, albite, blandite, cornite, daubite, endite, and the recorded depth of location of each specimen. We abbreviate the minerals names to A, B, C, D, E.
All row percentage sums to 100, except the 6-th 102.3 and the 10-th 99.9.
Note
Courtesy of J. Aitchison
Source
Aitchison: CODA microcomputer statistical package, 1986, the file name BOXITE.DAT, here included under the GNU Public Library Licence Version 2 or newer.
References
Aitchison: The Statistical Analysis of Compositional Data, 1986, Data 3, pp4.