Population assignments of the Tishkoff et al dataset using the EigenDev-ipPCA method. 49 assigned subpopulations are labeled SP1 to SP49. The height of the bars are proportional to the number of assigned individuals in each subpopulation. The population labels of the assigned individuals are shown to the right of each bar with the number of individuals with the same label in parentheses. To aid visualization of the individual assignment, the 185 population labels were grouped into 14 color groups reflecting geographical regions. Color gradients within the color group denote different population labels. For the complete color scheme, see Figure s3 in the Additional file 1.