Table 2.
Cross-validated PLS analysis
| Components | s | q2 |
|---|---|---|
| 1 | 0.746 | 0.242 |
| 2 | 0.663 | 0.418 |
| 3 | 0.654 | 0.452 |
| 4 | 0.644 | 0.485 |
| 5 | 0.691 | 0.426 |
| 6 | 0.674 | 0.473 |
s, standard error for the estimate of log IC50; q2, correlation coefficient or press value = 1.0 − {Σ(Y predicted − Y actual)2 ÷ (Y actual − Y mean)2}. Optimum number of components is 4 with q2 = 0.485.