Table 4 Confusion matrix of the linear discriminant analysis (LDA) based on (+ / −) DART-HRMS metabolites; the validation was carried out on the test set (n = 25).
From: Ambient mass spectrometry for rapid authentication of milk from Alpine or lowland forage
Predicted | Actual | ||
|---|---|---|---|
MMS | HAY | APS | |
MMS | 3 | 3 | 0 |
HAY | 8 | 6 | 0 |
APS | 0 | 0 | 5 |
Total | 11 | 9 | 5 |
Sensitivity | 0.27 | 0.67 | 1.00 |
Specificity | 0.79 | 0.50 | 1.00 |
Accuracy | 0.56 | 0.56 | 1.00 |
Precision | 0.50 | 0.43 | 1.00 |
Matthews correlation coefficient | 0.07 | 0.16 | 1.00 |
