Fitting Performance of Different Models on Loess Particle Size Distribution Curves
Table 2
Fitting parameters of G-7 by laser diffraction technique.
Jaky
Logarithmic
Value
Min
Max
Value
Min
Max
a
4.832 (20.97)
4.367
5.297
0.188 (17.20)
0.166
0.210
b
—
—
—
115.125 (28.46)
106.948
123.301
0.855
0.878
-value
773.289
462.488
value
1.000
0.000
Mean square
266.667
225.026
Degrees of freedom
41
40
Fredlund
Gompertz
Value
Min
Max
Value
Min
Max
a
0.034 (29.992)
0.031
0.036
−0.108 (−9.141)
−0.132
−0.084
b
2.424 (9.016)
1.879
2.968
1.102 (89.647)
1.077
1.127
c
1.831 (4.160)
0.940
2.723
50.055 (60.283)
48.374
51.736
d
3.168 (0.130)
−46.323
52.659
0.019 (40.111)
0.018
0.020
1.000
1.000
-value
92120.82
99005.573
value
0.000
0.000
Mean square
0.589
0.548
Degrees of freedom
38
38
(Note. Statistically significant at 0.05. Note that significance levels are one-tailed tests if matching a predicted direction and two-tailed tests otherwise. represents “model”; represents “value.” The same applies to Tables 3–12.)
