Table 3. Average distance between inferred and true ancestry locations in simulated admixed individuals from POPRES data as function of number of generations in the mixture process.

No. Generation	2	4	6	8
Naive model	899 ± 17 (487)	880 ± 5 (491)	864 ± 10 (466)	927 ± 11 (491)
SPAMIX	548 ± 12 (329)	550 ± 4 (326)	541 ± 7 (295)	562 ± 8 (336)

The inferred locations are global for the admixed individuals, which marginalizes over all possible uncertainty on the local genome blocks assignment. Two ancestral locations were assumed for this simulation. Parenthesis denote the SD, whereas SEM is computed as SD divided by square of number of simulations in each category. POPRES, Population Reference Sample.