The ability of FT-IR spectroscopy in combination with chemometrics
data analysis for discrimination between different oil samples
was investigated. The FT-IR spectra of a collection of 255 oil
samples of different sources were provided. All samples were randomly
split into training and test sets. In this case, 179 samples
were included in the training and the remaining 76 samples were
selected as test set (Table S1). The FT-IR spectra of the oil samples
of different sources are represented in Fig. 1.