Table 2 Included terms, term coefficients and term p-values in optimisation model
Linear | Coeff | p-value | Square | Coeff | p-value | Interaction | Coeff | p-value |
|---|---|---|---|---|---|---|---|---|
Gray_Low | 4.81 | 0.000 | GrayLow *GrayLow | −1.65 | 0.031 | GrayLow* Smooth | −1.35 | 0.034 |
B_Low | 2.61 | 0.000 | B_Low *B_Low | −3.21 | 0.029 | GrayLow *SE | 3.66 | 0.000 |
Smooth | 4.46 | 0.000 | Smooth *Smooth | −6.05 | 0.000 | B_Low *Smooth | 3.25 | 0.029 |
SE | −11.34 | 0.000 | SE*SE | −5.50 | 0.000 | Smooth*SE | 6.45 | 0.000 |