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Table 2 Summary of the results from simulated data under Model A1. The Likelihood Ratio Tests were performed between Model A1 versus Model A2 using the volume partition at the 5% significance level. The table also shows the percentage of sites predicted to be in each site class.

From: Identification of physicochemical selective pressure on protein encoding nucleotide sequences

Data Set

Partition

% of significant LRT tests*

% of sites in each category

   

ω≤1,γ≤1

ω≤1,γ>1

ω>1,γ≤1

ω>1,γ>1

Set 1 (ω = 0.4,γ = 4.0)

Volume

100

0.00

0.99

0.00

0.01

 

Hydrophobicity

100

0.27

0.41

0.08

0.24

Set 2 (ω = 4,γ = 0.4)

Volume

0

0.00

0.00

0.97

0.03

 

Hydrophobicity

100

0.08

0.11

0.17

0.64

Set 3 (ω = γ = 0.4)

Volume

4

0.99

0.00

0.00

0.01

 

Hydrophobicity

1

0.99

0.00

0.01

0.00

Set 4 (ω = γ = 4)

Volume

100

0.00

0.00

0.00

1.00

 

Hydrophobicity

100

0.00

0.00

0.00

1.00

  1. * Bold numbers indicate the correct category