Tecator: Tecator data

In fsemipar: Estimation, Variable Selection and Prediction for Functional Semiparametric Models

Tecator data

Description

Fat, protein, and moisture content, along with absorbance spectra (including the first and second derivatives), of 215 meat samples. A detailed description of the data can be found at http://lib.stat.cmu.edu/datasets/tecator.

Usage

data(Tecator)

Format

A list containing:

• fat: A vector with the fat content.

• protein: A vector with the protein content.

• moisture: A vector with the moisture content.

• absor.spectra: A matrix containing the near-infrared absorbance spectra observed at 100 equally spaced wavelengths in the range of 850-1050nm.

• absor.spectra1: Fist derivative of the absorbance spectra (computed using B-spline representation of the curves).

• absor.spectra2: Second derivative of the absorbance spectra (computed using B-spline representation of the curves).

References

Ferraty, F. and Vieu, P. (2006) Nonparametric functional data analysis, Springer Series in Statistics, New York.

Examples

data(Tecator)
names(Tecator)
Tecator$fat
Tecator$protein
Tecator$moisture
dim(Tecator$absor.spectra)

fsemipar documentation built on May 29, 2024, 1:31 a.m.