Fig. 1From: Comparison of mixed model based approaches for correcting for population substructure with application to extreme phenotype samplingType 1 error rates for the three mixed model methods (LEAP, GMMAT and CARAT). The allele frequency in population 1, p1, was fixed at 0.5. The allele frequency in population 2, p2, ranged from 0.5 to 0.9. The x-axis corresponds to the p2 value. The orange line represents GMMAT, the blue line represents LEAP, and the green line represents CARAT. The horizontal line indicates the alpha value of 0.05Back to article page