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. 2023 Aug 28;9(9):e19460. doi: 10.1016/j.heliyon.2023.e19460

Table 3.

Statistical adequacy evaluation of models.

Source Sequential p-value Lack of Fit p-value Adjusted R2 Predicted R2
Linear 0.0298 0.003 0.3678 0.0721
2FI 0.2024 0.0035 0.4712 −0.0856
Quadratic < 0.0001 0.3455 0.9605 0.8414
Cubic 0.3455 0.9673