BMC Ecology and Evolution

Table 1 Estimation of α, θ, and l.

From: Identifying dramatic selection shifts in phylogenetic trees

	Estimation of α					Estimation of θ					Estimation of l
θ\α	2.0	1.0	0.5	0.1	0.01	2.0	1.0	0.5	0.1	0.01	2.0	1.0	0.5	0.1	0.01
0.0	2.05	0.99	0.49	0.10	0.04	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
	1.90	0.61	0.23	0.05	0.07	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
0.1	2.18	1.07	0.54	0.11	0.05	0.76	0.68	NA	0.17	0.15	0.55	0.58	NA	0.51	0.51
	2.14	0.69	0.28	0.08	0.08	0.99	0.96	NA	0.21	0.17	0.97	0.99	NA	0.97	0.97
0.3	2.77	1.23	0.59	0.11	0.05	NA	0.49	0.38	0.26	0.26	NA	0.53	0.57	0.58	0.57
	3.42	0.91	0.36	0.08	0.08	NA	0.55	0.48	0.22	0.19	NA	0.97	0.97	0.96	0.97
0.5	3.27	1.41	0.60	0.11	0.06	0.79	0.56	0.43	0.40	0.40	0.37	0.56	0.57	0.63	0.61
	4.59	1.21	0.40	0.09	0.10	0.85	0.73	0.47	0.23	0.21	0.88	0.99	0.96	0.96	0.95
0.7	4.87	1.45	0.62	0.12	0.08	0.80	0.62	0.52	0.55	0.54	0.50	0.53	0.58	0.66	0.65
	7.85	1.49	0.40	0.08	0.10	0.89	0.74	0.50	0.24	0.22	0.95	0.96	0.95	0.94	0.94
0.9	6.74	1.62	0.65	0.13	0.10	0.86	0.74	0.66	0.69	0.69	0.47	0.56	0.61	0.67	0.66
	11.44	1.83	0.40	0.08	0.10	0.86	0.72	0.48	0.24	0.23	0.92	0.97	0.94	0.94	0.93

Each pair of entries summarizes the posterior estimation of model parameters α, θ, and l from 100 random data sets simulated assuming various choices of θ (rows) and α (columns). The first row, where θ = 0 is for data simulated without a divergence point. First in each pair is the average posterior mean, summarizing accuracy; second is the average width of the 95% Bayesian credible interval, summarizing precision. Statistics for θ and l are based only on those simulations strongly supporting a divergence point, which may be substantially fewer than 100 simulations. NA means a divergence point was never strongly supported for that simulation condition.

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