Figure 3.
Estimation of codon model parameters from amino acid data. A) Simulation (
) and estimated (
) values of 
show a strong linear relationship (
= 2 for all simulations shown). Squares represent the median 
for each 
; points show estimates from individual alignments. Dashed line indicates 
; solid line shows the line fit for the medians, with high values of 
slightly prone to overestimation (slope = 1.07, intercept = 0.0083, 
= 0.92, 
0). B) Estimates of 
show a similar pattern (
= 0.3; slope = 1.00, intercept = 
0.0009, 
= 1.00, 
0).