Table 1 Mixture models of ω and λ
From: Identification of physicochemical selective pressure on protein encoding nucleotide sequences
Model | Site classes* | parameters | constraints | P** |
|---|---|---|---|---|
A1 | (i), (ii), (iii), (iv) | ω0, ω1, γ0, γ1, p0 p1, p2 | ω0≤1, ω1>1, γ0≤1, γ1>1, p3 = 1-p0-p1-p2 | 7 |
A2 | (i), (iii) | ω0, ω1, γ, p0 | ω0≤1, ω1>1, γ≤1 | 4 |