coffee {robCompositions} | R Documentation |
coffee data set
Description
30 commercially available coffee samples of different origins.
Usage
data(coffee)
Format
A data frame with 30 observations and 7 variables.
Details
sort
sort of coffeeacit
acetic acidmetpyr
methylpyrazinefurfu
furfuralfurfualc
furfuryl alcoholdimeth
2,6 dimethylpyrazinemet5
5-methylfurfural
In the original data set, 15 volatile compounds (descriptors of coffee aroma) were selected for a statistical analysis. We selected six compounds (compositional parts) on three sorts of coffee.
Author(s)
Matthias Templ matthias.templ@tuwien.ac.at, Karel Hron
References
M. Korhonov\'a, K. Hron, D. Klimc\'ikov\'a, L. Muller, P. Bedn\'ar, and P. Bart\'ak (2009). Coffee aroma - statistical analysis of compositional data. Talanta, 80(2): 710–715.
Examples
data(coffee)
str(coffee)
summary(coffee)
[Package robCompositions version 2.4.1 Index]