Fig. 3 | Scientific Reports

Fig. 3

From: Using UV and FTIR spectroscopy for discrimination among vicia seeds with emphasis on UV based multivariate modelling

Fig. 3

The PCA model of the eight fava bean varieties based on the UV spectra of the training set (n = 32 samples) (a). This model was challenged by 10 non-fava bean samples from Vicia sativa (VS) and Vicia monantha (VM) and all of them clustered away from the training set samples (blue dots, n = 32) and appear as outliers (green dots, n = 10) in (b). This model was also challenged by a validation set (n = 25, the green dot) representing the eight fava bean varieties and all of them clustered correctly with their respective cluster (c).

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