Table 5.
Stepwise context reduction for the Ancestral Repeats dataset using the likelihood-based approach.
| Model | Contexts | Annealing | Melting | log BF |
| GTR16C | 16 (96) | [623.2; 638.2] | [645.5; 661.9] | 642.2 |
| GTR15C | 15 (90) | [658.0; 672.1] | [665.0; 682.0] | 669.2 |
| GTR14C | 14 (84) | [651.9; 668.4] | [664.3; 678.9] | 665.9 |
| GTR13C | 13 (78) | [661.7; 675.9] | [672.6; 686.4] | 674.2 |
| GTR12C | 12 (72) | [679.8; 694.7] | [695.8; 714.7] | 696.3 |
| GTR11C | 11 (66) | [676.5; 692.7] | [694.4; 709.7] | 693.3 |
| GTR10C | 10 (60) | [686.0; 700.1] | [698.9; 715.5] | 700.1 |
| GTR9C | 9 (54) | [675.3; 689.0] | [685.5; 701.1] | 687.7 |
| GTR8C | 8 (48) | [656.7; 669.7] | [678.5; 695.6] | 675.1 |
| GTR | 1 (6) | - | - | 0 |
The stepwise context reduction for the Ancestral Repeats dataset using the likelihood-based clustering approach reveals an optimal model with 10 clusters (GTR10C). It attains a log Bayes Factor of 700.1 (over GTR1C), which is a significant improvement over the full context-dependent model (GTR16C) that has 36 additional parameters. Further reducing the number of contexts decreases model fit.