The data set from Aitchison (1986), p. 382, contains
compositions of eight-hour shifts of 27 machine operators.
The parts represent proportions of shifts in each activity:
high-quality production, low-quality production, machine
setting and machine repair.
Usage
data(machineOperators)
Arguments
References
Aitchison, J. (1986) The Statistical Analysis of Compositional
Data Monographs on Statistics and Applied Probability. Chapman &
Hall Ltd., London (UK). 416p.