Table 3 The performance measure of sensitivity, specificity and precision based on the PLS-DA model embedded with (a) no preprocesses method (b) with auto scale (c) with SNV and (d) with mean center
Parameter | Calibration | Validation | ||||
|---|---|---|---|---|---|---|
Normal | Mild | Severe | Normal | Mild | Severe | |
(a) PLS-DA with no preprocesses | ||||||
Sensitivity | 1.00 | 0.29 | 0.86 | 1.00 | 0.67 | 1.00 |
Specificity | 0.93 | 0.93 | 0.71 | 1.00 | 1.00 | 0.83 |
Precision | 0.88 | 0.67 | 0.60 | 1.00 | 1.00 | 0.75 |
Accuracy | 0.95 | 0.71 | 0.76 | 0.43 | 0.38 | 0.38 |
(b) PLS-DA with autoscale | ||||||
Sensitivity | 1.00 | 0.71 | 0.29 | 1.00 | 1.00 | 1.00 |
Specificity | 1.00 | 0.64 | 0.86 | 1.00 | 1.00 | 1.00 |
Precision | 1.00 | 0.50 | 0.50 | 1.00 | 1.00 | 1.00 |
Accuracy | 1.00 | 0.67 | 0.67 | 1.00 | 1.00 | 1.00 |
(c) PLS-DA with SNV | ||||||
Sensitivity | 0.86 | 0.57 | 0.29 | 1.00 | 1.00 | 0.00 |
Specificity | 0.93 | 0.71 | 0.71 | 0.50 | 1.00 | 1.00 |
Precision | 0.86 | 0.50 | 0.33 | 0.50 | 1.00 | 1.00 |
Accuracy | 0.90 | 0.67 | 0.57 | 0.67 | 1.00 | 0.67 |
(d) PLS-DA with mean center | ||||||
Sensitivity | 1.00 | 0.43 | 0.86 | 1.00 | 0.67 | 1.00 |
Specificity | 1.00 | 0.93 | 0.71 | 1.00 | 1.00 | 0.83 |
Precision | 1.00 | 0.75 | 0.60 | 1.00 | 1.00 | 0.75 |
Accuracy | 1.00 | 0.76 | 0.76 | 1.00 | 0.89 | 0.89 |