Table 3.
Predictability values of partial least squares-discriminate analysis (PLS-DA).
| Measure | C vs M | C vs S | M vs S | C vs M vs S |
|---|---|---|---|---|
| R22 | 0.836 | 0.845 | 0.568 | 0.797 |
| Q22 | 0.691 | 0.723 | 0.262 | 0.667 |
| Accuracy | 0.957 | 0.973 | 0.831 | 0.826 |
C versus M, Control versus Mild; C versus S, Control versus Severe; M versus S, Mild versus Severe; and C versus M versus S, Control versus Mild versus Severe. Q2, R2 and accuracy were calculated via double cross validation procedure with tenfold-CV, non-independent set was used.