Fig. 5
From: A framework for research into continental ancestry groups of the UK Biobank
Principal components for CAG with geographic regions of birth: Principal components one and two for each CAG, with (A–D) individuals colored by their region of birth (A–D), and with (E–H) the PC center also colored by region of birth. PC centers were estimated as the average PC1 and PC2 values for all individuals of that ROB. Regions of birth are denoted in the figure legend, and the proportion of variation explained by each PC is indicated on each axis