hyptis {chemometrics}R Documentation

Hyptis data set

Description

30 objects (Wild growing, flowering Hyptis suaveolens) and 7 variables (chemotypes), and 2 variables that explain the grouping (4 groups).

Usage

data(hyptis)

Format

A data frame with 30 observations on the following 9 variables.

Sabinene
a numeric vector
Pinene
a numeric vector
Cineole
a numeric vector
Terpinene
a numeric vector
Fenchone
a numeric vector
Terpinolene
a numeric vector
Fenchol
a numeric vector
Location
a factor with levels East-high East-low North South
Group
a numeric vector with the group information

Details

This data set can be used for cluster analysis.

Source

~~ reference to a publication or URL from which the data were obtained ~~

References

P. Grassi, M.J. Nunez, K. Varmuza, and C. Franz: Chemical polymorphism of essential oils of Hyptis suaveolens from El Salvador. Flavour & Fragrance, 20, 131-135, 2005. K. Varmuza and P. Filzmoser: Introduction to Multivariate Statistical Analysis in Chemeometrics. CRC Press. To appear.

Examples

data(hyptis)
str(hyptis)

[Package chemometrics version 0.4 Index]