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%% $Id$
\encoding{UTF-8}
\name{yarn}
\alias{yarn}
\docType{data}
\title{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.
}
\usage{yarn}
\format{A data frame with components
\describe{
\item{NIR}{Numeric matrix of NIR measurements}
\item{density}{Numeric vector of densities}
\item{train}{Logical vector with \code{TRUE} for the training
samples and \code{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
\emph{Chemometrics and Intelligent Laboratoryy Systems}, \bold{49}(1), 1--17.
}
\keyword{datasets}
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