Table 3: Fitting equations and correlation coefficients under different simulation conditions.

NumberFitted equationsRNumberFitted equationsR

1 0.75297 0.7529
2 0.87168 0.8000
3 0.83199 0.7671
4 0.765210 0.7409
5 0.775811 0.7416
6 0.784712 0.7953