Fig. 2From: Quality control for Illumina 450K methylation data in the absence of iDat files using correlation structure in pedigrees and repeated measuresSNPs located in CpGs. Methylation value pre- versus posttreatment for 1 CpG (cg25649515) with the 3 clusters on the diagonal representing the different underlying SNP genotypes at rs552757. Individuals that switch inferred genotype between the 2 measurements are colored redBack to article page