ArcticLake: Artic lake sediment samples of different water depth
Description
Sand, silt and clay compositions of 39 sediment samples of different water depth
in an Arctic lake.source
Aitchison: CODA microcomputer statistical package, 1986, the file name ARCTIC.DAT,
here included under the GNU Public Library Licence Version 2 or newer.Details
Sand, silt and clay compositions of 39 sediment samples at different water depth (in meters)
in an Arctic lake. The additional feature is a concomitant variable or covariate,
water depth, which may account for some of the variation in the compositions.
In statistical terminology we have a multivariate regression problem with sediment composition
as regressand and water depth as regressor.
All row percentage sums to 100, except for rounding errors.References
Aitchison: The Statistical Analysis of Compositional Data, 1986, Data 5, pp5.