Table 1 

Results of the Simulation Study 

γ 
Power 



0 
0.026 
0.064 
1.694 
0.489 
2.128 
1.255 
1.034 
1.255 
0.05 
0.1 
0.102 
0.105 
1.649 
0.468 
2.339 
1.434 
1.107 
0.830 
0.38 
0.3 
0.337 
0.172 
1.648 
0.523 
2.086 
1.265 
1.214 
0.942 
0.78 
0.5 
0.497 
0.203 
1.726 
0.611 
2.110 
1.364 
1.263 
1.099 
0.87 


Results of the simulation study for varying γ using the model hybrid species tree in Figure 1. The value of γ used to simulate the data is shown in column 1. Columns 2 and 3 give the mean and standard deviation (SD) of the MLEs of γ over the 100 replicates. Similarly, columns 4 and 5, 6 and 7, and 8 and 9 give the means and SDs of the MLEs of the branch length estimates. Column 10 gives the power of the likelihood ratio test of the null hypothesis that γ = 0. 

Gerard et al. BMC Evolutionary Biology 2011 11:291 doi:10.1186/1471214811291 