Table 2.
Calibration performance expressed in R2, RMSE, slope and intercept. Numbers in parentheses are the results from single linear regression.
| MLR (LR) | Sensor | Slope | Intercept | R2 | RMSE |
|---|---|---|---|---|---|
| Botlek | 01 | 0.87 | 5.41 | 0.78 | 9.66 |
| (0.47) | (22.39) | (0.38) | (16.51) | ||
| 02 | 0.86 | 5.89 | 0.76 | 10.04 | |
| (0.64) | (14.73) | (0.52) | (14.37) | ||
| Veldhoven | 03 | 0.85 | 2.57 | 0.75 | 5.32 |
| (0.24) | (13.63) | (0.2) | (10.29) | ||
| 04 | 0.8 | 3.32 | 0.69 | 6.25 | |
| (0.03) | (16.34) | (0.03) | (11.1) | ||
| Breukelen | 05 | 0.86 | 3.78 | 0.77 | 8.64 |
| (0.25) | (20.83) | (0.21) | (16.03) | ||
| 06 | 0.84 | 4.55 | 0.74 | 8.84 | |
| (0.54) | (12.81) | (0.43) | (12.88) | ||
| Utrecht | 07 | 0.91 | 2.39 | 0.84 | 6.62 |
| (0.17) | (21.71) | (0.15) | (15.11) | ||
| 08 | 0.91 | 2.36 | 0.84 | 6.44 | |
| (0.49) | (13.48) | (0.4) | (12.62) |