Table 3.

CpG island-related distributions.

Dataset	Island	N_Shelf	N_Shore	S_Shelf	S_Shore	Other
All CpGs	0.3199	0.0501	0.1318	0.0445	0.1031	0.3506
Well-predicted CpGs	0.3192	0.0642	0.1196	0.0583	0.0672	0.3715

The categories were designated by Illumina annotation. Five genomic annotation categories including island, northern shelf (N_shelf), southern shelf (S_shelf), northern shore (N_shore) and southern shore (S_shore) are listed. Each proportion is the number of the CpGs belonging to the same category divided by the sum of CpGs in the dataset. The ‘All CpGs’ row is the proportion for the all CpGs dataset and the ‘Well-predicted CpGs’ row is the proportion for the well-predicted CpGs dataset.