Table 1.
Comparison of Kinship Coefficient Estimates by Relationship Type from PC-Relate and Model-Based Estimators
| Relationship Type | Expected | PC-Relate | RelateAdmix | REAP |
|---|---|---|---|---|
| Parent-offspring | 0.2500 | 0.2505 (0.0023) | 0.2503 (0.0007) | 0.2452 (0.0038) |
| Full siblings | 0.2500 | 0.2501 (0.0021) | 0.2480 (0.0019) | 0.2442 (0.0027) |
| 2nd degree | 0.1250 | 0.1252 (0.0022) | 0.1216 (0.0023) | 0.1196 (0.0035) |
| 3rd degree | 0.0625 | 0.0626 (0.0020) | 0.0581 (0.0024) | 0.0572 (0.0030) |
| 4th degree | 0.0313 | 0.0311 (0.0019) | 0.0259 (0.0024) | 0.0254 (0.0026) |
| 5th degree | 0.0156 | 0.0156 (0.0017) | 0.0108 (0.0022) | 0.0106 (0.0022) |
| Unrelated | 0.0000 | 0.0000 (0.0017) | 0.0006 (0.0006) | −0.0024 (0.0028) |
The values presented in the table for each of the estimators are mean (SD) of the estimated kinship coefficients from the simulation setting with outbred pedigrees under population structure II.