Table 2.
Likelihood Ratio Between Different Evolutionary Models
|
Evolutionary model |
Degree of freedom |
X2 |
P |
|---|---|---|---|
| M0 vs. M2 | 2 | 67.06 | ≪0.0001 |
| M1 vs. M2
|
2
|
30.88
|
≪0.0001
|
-
Degree of freedom is the difference in the number of parameters between models.
χ2 is twice the difference of log likelihood between models.
P is the probability that two models should differ in log likelihood, as much as that observed, given the degree of freedom.
