The basic function of the developed mathematical model by MARS algorithm
| BF functions . | Coefficients . |
|---|---|
| BF1 = max(0, δ* − 1.87) | −0.035 |
| BF2 = max(0, 1.87 −δ*) | 0.046 |
| BF3 = BF1 * max(0, 0.0011 −So) | 33.067 |
| BF4 = max(0, So −0.00099) | 16.524 |
| BF5 = max(0, 0.00099 −So) | −533.352 |
| BF6 = BF1 * max(0, β − 0.364) | −0.062 |
| BF7 = BF1 * max(0, 0.364 −Dr) | 0.034 |
| BF8 = max(0, θ +1.91) | −0.013 |
| BF9 = max(0, −1.91 −θ) | 0.006 |
| BF10 = BF1 * max(0, −3.81 −θ) | −0.003 |
| BF11 = max(0, θ −5.71) | 0.002 |
| BF12 = BF4 * max(0, 0.708 −fr) | 44.688 |
| BF13 = max(0, θ +9) * max(0, δ* − 4.17) | −0.002 |
| BF14 = BF9 * max(0, δ* − 3.96) | 0.004 |
| BF15 = BF9 * max(0, 3.96 −δ*) | −0.004 |
| BF16 = max(0, θ +3.81) | 0.011 |
| BF17 = max(0, 5.71 -θ) * max(0, 0.269 −Dr) | −0.003 |
| BF18 = max(0, θ +9) * max(0, δ* − 3.91) | 0.003 |
| BF19 = BF16 * max(0, 1.28 -Ar) | 0.007 |
| BF20 = BF16 * max(0, fr −0.82) | −0.236 |
| BF functions . | Coefficients . |
|---|---|
| BF1 = max(0, δ* − 1.87) | −0.035 |
| BF2 = max(0, 1.87 −δ*) | 0.046 |
| BF3 = BF1 * max(0, 0.0011 −So) | 33.067 |
| BF4 = max(0, So −0.00099) | 16.524 |
| BF5 = max(0, 0.00099 −So) | −533.352 |
| BF6 = BF1 * max(0, β − 0.364) | −0.062 |
| BF7 = BF1 * max(0, 0.364 −Dr) | 0.034 |
| BF8 = max(0, θ +1.91) | −0.013 |
| BF9 = max(0, −1.91 −θ) | 0.006 |
| BF10 = BF1 * max(0, −3.81 −θ) | −0.003 |
| BF11 = max(0, θ −5.71) | 0.002 |
| BF12 = BF4 * max(0, 0.708 −fr) | 44.688 |
| BF13 = max(0, θ +9) * max(0, δ* − 4.17) | −0.002 |
| BF14 = BF9 * max(0, δ* − 3.96) | 0.004 |
| BF15 = BF9 * max(0, 3.96 −δ*) | −0.004 |
| BF16 = max(0, θ +3.81) | 0.011 |
| BF17 = max(0, 5.71 -θ) * max(0, 0.269 −Dr) | −0.003 |
| BF18 = max(0, θ +9) * max(0, δ* − 3.91) | 0.003 |
| BF19 = BF16 * max(0, 1.28 -Ar) | 0.007 |
| BF20 = BF16 * max(0, fr −0.82) | −0.236 |