yarn {pls}

NIR spectra and density measurements of PET yarns

Description

A training set consisting of 21 NIR spectra of PET yarns, measured at 268 wavelengths, and 21 corresponding densities. A test set of 7 samples is also provided. Many thanks to Erik Swierenga.

Format

A data frame with components

NIR

Numeric matrix of NIR measurements

density

Numeric vector of densities

train

Logical vector with TRUE for the training samples and FALSE for the test samples

Source

Swierenga H., de Weijer A. P., van Wijk R. J., Buydens L. M. C. (1999) Strategy for constructing robust multivariate calibration models Chemometrics and Intelligent Laboratoryy Systems, 49(1), 1–17.