| Sugar {fsemipar} | R Documentation |
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, doi: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, doi:10.1111/anzs.12355.
Examples
data(Sugar)
names(Sugar)
Sugar$ash
dim(Sugar$wave.290)
dim(Sugar$wave.240)