I was wondering if there's a straightforward way of finding the ID of the CpG Island from a particular Shore/Shelf ID. Since the ID of the shore is different from that of its corresponding island. I figured the numbering is something like:
shore:2, belong to
island:1, and for example shores
shore:14, belong to
island:7...and so on
island.id <- shore.id - floorshore.id/2?
I think this stops working at some point. Anyway, is there an easier way of getting the island IDs from the shore IDs?