Sugar: Sugar data

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

Sugar data

Description

Ash content and absorbance spectra at two different excitation wavelengths of 268 sugar samples. Detailed information about this dataset can be found at https://ucphchemometrics.com/datasets/.

Usage

data(Sugar)

Format

A list containing:

• ash: A vector with the ash content.

• wave.290: A matrix containing the absorbance spectra observed at 571 equally spaced wavelengths in the range of 275-560nm, at an excitation wavelengths of 290nm.

• wave.240: A matrix containing the absorbance spectra observed at 571 equally spaced wavelengths in the range of 275-560nm, at an excitation wavelengths of 240nm.

References

Aneiros, G., and Vieu, P. (2015) Partial linear modelling with multi-functional covariates. Computational Statistics, 30, 647–671, \Sexpr[results=rd]{tools:::Rd_expr_doi("https://doi.org/10.1007/s00180-015-0568-8")}.

Novo, S., Vieu, P., and Aneiros, G., (2021) Fast and efficient algorithms for sparse semiparametric bi-functional regression. Australian and New Zealand Journal of Statistics, 63, 606–638, \Sexpr[results=rd]{tools:::Rd_expr_doi("https://doi.org/10.1111/anzs.12355")}.

Examples

data(Sugar)
names(Sugar)
Sugar$ash
dim(Sugar$wave.290)
dim(Sugar$wave.240)

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