Figure 2From: MethylPCA: a toolkit to control for confounders in methylome-wide association studiesQQ plot and the lambda values of the association tests before PCA and after PCA on a simulated data set. Figure 2 (a) shows the QQ plot and lambda without including PCs in the association test. Figure 2 (b) shows the QQ plot and lambda including PCs in the association test.Back to article page