Fitting Performance of Different Models on Loess Particle Size Distribution Curves

Table 3

Fitting parameters of H-5 by laser diffraction technique.

	Jaky			Logarithmic
	Value	Min	Max	Value	Min	Max
a	4.639 (19.963)	4.170	5.109	0.191 (15.776)	0.116	0.168
b	—	—	—	112.659 (26.785)	104.152	121.167
	0.850			0.861
-value	744.210			404.349
value	1.000			0.000
Mean square	279.737			258.786
Degrees of freedom	41			40
	Fredlund			Gompertz
	Value	Min	Max	Value	Min	Max
a	0.040 (53.339)	0.039	0.042	−0.041 (−6.840)	−0.053	−0.029
b	2.805 (14.907)	2.424	3.186	1.037 (160.344)	1.024	1.050
c	1.769 (8.360)	1.341	2.199	48.736 (72.814)	47.380	50.092
d	3.689 (0.240)	−27.415	34.793	0.026 (85.031)	0.025	0.026
	1.000			1.000
-value	119670.944			122720.519
value	0.000			0.000
Mean square	0.458			0.447
Degrees of freedom	38			38