Figure 6
From: SWAN: Subset-quantile Within Array Normalization for Illumina Infinium HumanMethylation450 BeadChips
Comparison of β value density distributions between HumanMethylation450 and HumanMethylation27 arrays before and after SWAN in an MCF7 cell line. This plot illustrates the β value density distributions for 25,978 CpGs that are present on both 450k and 27k platforms. The peaks of the 450k Infinium I and II probe types show better alignment with the 27k peaks when SWAN is used.