Fitting Performance of Different Models on Loess Particle Size Distribution Curves

Table 4

Fitting parameters of L-3 by laser diffraction technique.

	Jaky			Logarithmic
	Value	Min	Max	Value	Min	Max
a	4.754 (18.940)	4.246	5.261	0.190 (14.906)	0.164	0.215
b	—	—	—	113.702 (21.592)	104.745	122.659
	0.833			0.847
-value	685.062			374.964
value	1.000			0.000
Mean square	312.119			286.852
Degrees of freedom	41			40
	Fredlund			Gompertz
	Value	Min	Max	Value	Min	Max
a	0.038 (46.947)	0.036	0.039	−0.026 (−6.405)	−0.034	−0.018
b	3.072 (11.835)	2.546	3.597	1.024 (233.538)	1.016	1.033
c	1.691 (6.584)	1.171	2.212	56.442 (93.406)	55.218	57.666
d	2.337 (0.182)	−23.692	28.367	0.024 (128.52)	0.024	0.025
	1.000			1.000
-value	84361.639			197478.102
value	0.000			0.000
Mean square	0.671			0.286
Degrees of freedom	38			38