baseline (version 1.3-8)

milk: MALDI-TOF mass spectra

Description

Matrix of 45 spectra of 21451 m/z values from MALDI-TOF on mixed milk samples.

Usage

data(milk)

Format

A data frame with 45 observations on the following 2 variables.

cow

a numeric vector

spectra

a matrix with 21451 columns

Details

cow is the concentration of cow milk in mixed samples of cow, goat, and ewe milk.

References

Kristian Hovde Liland, Bjørn-Helge Mevik, Elling-Olav Rukke, Trygve Almøy, Morten Skaugen and Tomas Isaksson (2009) Quantitative whole spectrum analysis with MALDI-TOF MS, Part I: Measurement optimisation. Chemometrics and Intelligent Laboratory Systems, 96(2), 210--218.

Examples

data(milk)
if (FALSE) {
plot(milk$spectra[1,], type = "l")
}