MOESM9 of “Gap hunting” to characterize clustered probe signals in Illumina methylation array data

Additional file 9: Table S3. Group distributions of 3 different classifications of gap signals. We compared the group distribution for the three groups—mapping measured SNP, mapping annotated SNP, and no mapping SNP—of gap signals. The two groups with mapping SNPs had a very similar relative proportion of groups, while the group with no mapping SNPs was comparatively enriched for distributions with 2 clusters or groups. This result lends additional rationale to a different mechanism besides SNPs as leading the gap signal behavior.