Table 3 Statistical errors for ADMIXTURE and sNMF on simulated data sets
Ancestry estimationDir(1, 1, 1)Dir(0.5, 0.5, 0.5)Dir(0.1, 0.1, 0.1)Dir(0.2, 0.2, 0.05)Dir(0.2, 0.2, 0.5)Dir(0.05, 0.05, 0.01)
Q matrix
 ADMIXTURE0.0230.0120.0040.0060.0100.003
 sNMF α = 00.0200.0110.0070.0070.0130.009
 sNMF α = 1000.0240.0140.0060.0060.0140.006
G matrix
 ADMIXTURE0.0290.0220.0160.0220.0220.022
 sNMF α = 00.0340.0270.0210.0280.0280.028
 sNMF α = 1000.0340.0270.0210.0280.0280.028
  • Dir: Dirichlet distribution used to simulate “true” admixture coefficients, using three ancestral populations.