Table 4.
Results from simulation scenarios 7 and 8. Transmission rate ratio and sampling proportions were jointly estimated for transmission trees belonging to the same tree class. For Bayesian inference, rλ,1 was fixed to its true value (rλ,1 = 1.0). Out of 100 simulation replicates, for scenario 7 in total 89 replicates and for scenario 8 in total 99 replicates yielded ESS > 200 for all estimated parameters.
| Scenario | Parameter | Truth | Median | Relative error | Relative bias | Relative HPD width | 95% HPD accuracy |
|---|---|---|---|---|---|---|---|
| 7 | Rbase, t1 | 3.0 | 2.876 | 0.078 | −0.041 | 0.415 | 97 |
| Rbase, t2 | 2.3 | 2.338 | 0.034 | 0.017 | 0.175 | 98 | |
| rλ,1 | 1.0 | 1.0 (fixed) | – | – | – | – | |
| rλ,2 | 1.666 | 1.626 | 0.069 | −0.024 | 0.366 | 96 | |
| s1,1 | 0.0 | 0.0 (fixed) | – | – | – | – | |
| s1,2 | 0.01 | 0.010 | 0.123 | 0.010 | 0.918 | 100 | |
| s2,1 | 0.0 | 0.0 (fixed) | – | – | – | – | |
| s2,2 | 0.01 | 0.010 | 0.111 | −0.017 | 1.067 | 100 | |
| 8 | Rbase, t1 | 1.17 | 1.260 | 0.094 | 0.077 | 0.343 | 87 |
| Rbase, t2 | 0.9 | 1.008 | 0.120 | 0.120 | 0.084 | 0 | |
| rλ,1 | 1.0 | 1.0 (fixed) | – | – | – | – | |
| rλ,2 | 1.6 | 1.402 | 0.124 | −0.124 | 0.188 | 29 | |
| s1,1 | 0.0 | 0.0 (fixed) | – | – | – | – | |
| s1,2 | 0.01 | 0.012 | 0.178 | 0.152 | 0.692 | 93 | |
| s2,1 | 0.0 | 0.0 (fixed) | – | – | – | – | |
| s2,2 | 0.01 | 0.010 | 0.137 | −0.01 | 0.907 | 100 |