FTIR spectra of freeze-dried coffee (Arabica vs Robusta)

56 samples, 286 spectral variables, 2 classes.
29 Arabica (class 0), 27 Robusta (class 1).
Spectral range: 810-1910 cm-1 (FTIR with DRIFT sampling).

Task: binary classification - coffee varietal identification.

Related publications:

    Briandet, R., Kemsley, E.K., Wilson, R.H. (1996).
    Discrimination of Arabica and Robusta in Instant Coffee by
    Fourier Transform Infrared Spectroscopy and Chemometrics.
    J. Agric. Food Chem. 44 (1), 170-174.
    https://doi.org/10.1021/jf950305a

    Downey, G., Briandet, R., Wilson, R.H., Kemsley, E.K. (1997).
    Near- and Mid-Infrared Spectroscopies in Food Authentication:
    Coffee Varietal Identification. J. Agric. Food Chem. 45 (11), 4357-4361.
    https://doi.org/10.1021/jf970337t

Source: Quadram Institute CSR (https://csr.quadram.ac.uk/example-datasets-for-download/)
