Table 3.
Parameter estimation for the continuously varying birth-death process.
| Simulation settings | Estimates | |||||
|---|---|---|---|---|---|---|
| no. of tips | λ | μ | k | λ MEAN (rel. error) | μ MEAN (rel. error) | k MEAN (rel. error) |
| 50 | 1 | 0.1 | 0.25 | 1.91 (0.91) | 0.50 (3.99) | 0.23 (-0.08) |
| 100 | 1 | 0.1 | 0.25 | 1.68 (0.68) | 0.34 (2.38) | 0.19 (-0.25) |
| 50 | 5 | 0 | 0.95 | 3.72 (-0.26) | 0.31 (-) | 0.75 (-0.21) |
| 100 | 5 | 0 | 0.95 | 5.22 (0.04) | 0.33 (-) | 0.97 (0.02) |
Estimates of speciation (λ) and extinction (μ) rates and the k parameter are inferred using the variable rate birth-death model (SPVAR), averaged over 100 phylogenies. Relative errors are given in parenthesis.