Model | Fit type |
---|---|
F1=59.733 − 0.304 × RMean | Linear regression |
F2 = 76.134 − 0.441 × RMean − 11.203 × YSkewness − 1.516 × GKurtosis | Linear regression |
F3 = 19.38 + 7.972 × cos (1.314 × RMedian) − 6.747 × sin (1.314 × RMedian) | Fourier fitting |
F4 = 0.3344 + 0.8709 × RMean − 1 77.3 × RSkewness − 0.005536 × R 2Mean +2.8 76 × RMean × RSkewness + 8.515 × R 2Skewness − 0.0122 7 × R 2Mean × RSkewness − 0.1398 × RMean × R 2Skewness + 7.301 × R 3Skewness | Polynomial fitting |