| WhiteCells {compositions} | R Documentation |
White-cell composition of 30 blood samples by two different methods
Description
In 30 blood samples portions of three kinds of white cells
- G:
granulocytes,
- L:
lymphocytes,
- M:
monocytes,
were determined with two methods, time-consuming microscopic and automatic image analysis. The resulting 30 pairs of 3-part compositions are recorded.
Usage
data(WhiteCells)
Format
A 30x6 matrix
Details
In an experiment each of 30 blood samples was halved, one half being assigned randomly to one method, the other half to the other method. We have 60 cases of 3-part compositions but these are essentially 30 pairs of related compositions. All 3-part portions sums to one, except for some rounding errors.
Note
Courtesy of J. Aitchison
Source
Aitchison: CODA microcomputer statistical package, 1986, the file name WCELLS.DAT, here included under the GNU Public Library Licence Version 2 or newer.
References
Aitchison, J. (1986) The Statistical Analysis of Compositional Data, 1986 (Data 9) pp16.