octane | R Documentation |
Near infrared absorbance spectra (NIR) of 39 gasoline samples over 226 wavelengths ranging from 1102nm to 1552nm with measurements every two nanometers. Six of the samples (25, 26, 36-39) contain added alcohol.
data(octane)
A three-dimensional t = 226
by n = 39
by p = 1
array.
Esbensen K., Schonkopf S., Midtgaard T. (1994). Multivariate Analysis in Practice. Trondheim: Camo.
Hubert M., Rousseeuw P.J., Vanden Branden K. (2005). ROBPCA: a new approach to robust principal component analysis. Technometrics, 47, 64–79.
data(octane)
matplot(octane[,1:30,1], type = "l", lty = 1, col = "black")
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