Fig. 5.
PC scores of the European UK Biobank samples, as predicted by SP, AP and OADP. European samples were identified by OADP using global 1000 Genome reference samples. The reference panel consisted of all the 498 European 1000 Genomes samples. The population membership of each study sample was predicted by the votes of the 20 nearest reference samples with weights inversely proportional to the distance in between. The MSD was scaled with the average distance between the reference population means and the reference global mean. The shrinkage factors for the Top 4 PCs predicted by AP were 0.70, 0.40, 0.21 and 0.14. The Fst statistic was 0.01, and the total variation contributed from the Top 4 PCs was 0.02