Fig. 4
From: Accurate ethnicity prediction from placental DNA methylation data
Comparing PlaNET to existing methods to account for population stratification using HM450K data. For each cohort, principal components analysis was conducted on PlaNET using a model trained on all other cohorts. PlaNET’s principal components (PCs) were then compared to the PCs computed on sites from EPISTRUCTURE [9], Barfield’s method [8], and the 59 SNPs. a Amount of variance explained from a series of linear models where principal component “i” is a function of self reported ethnicity encoded as a dummy variable. b This was then repeated using AIMs coordinates 1 and 2 instead of ethnicity as the independent variable (n = 109)