Comparison of Attenuated Total Reflectance Mid-Infrared, Near Infrared, and ¹H-Nuclear Magnetic Resonance Spectroscopies for the Determination of Coffee’s Geographical Origin

Figure 2

Scores plots of typical models for discrimination by species. These models were chosen from the top of the curves in Figure 1. By “typical” we mean that all models generated in the 7-fold validation presented pretty much the same behavior as the ones depicted. Squares: Arabica and circles: Robusta.