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.
Maksimovic et al. Genome Biology 2012 13:R44 doi:10.1186/gb-2012-13-6-r44