Table 3.
Type I error for simulated data sets showing population structure
| Parameters | Type I error | ||
|---|---|---|---|
|
α |
σY |
QBlossoc |
LSS |
| 5 |
10 |
0.04 |
0.08 |
| 5 |
20 |
0.08 |
0.06 |
| 5 |
30 |
0.06 |
0.05 |
| 5 |
40 |
0.03 |
0.07 |
| 7.5 |
10 |
0.07 |
0.06 |
| 7.5 |
20 |
0.09 |
0.09 |
| 7.5 |
30 |
0.06 |
0.06 |
| 7.5 |
40 |
0.11 |
0.05 |
| 10 |
10 |
0.04 |
0.03 |
| 10 |
20 |
0.10 |
0.06 |
| 10 |
30 |
0.06 |
0.06 |
| 10 | 40 | 0.06 | 0.10 |
For the values of α (the strength of selection) and σY (the standard deviation of the quantitative trait per unit time) considered here, the type I error rates are all near 0.05 for these simulation results in the case of six subpopulations. (Population divergence times for the six subpopulations are omitted for simplicity. See text for details).