Get the next VariantKey for the specified rsID in the RV file, or 0 if not found This function can be called in a loop to get all VariantKeys that are associated with the same rsID (if any).

GetNextRvVariantKeyByRsid(rsid, pos, last = vk.env$rsvk_$NROWS,
  mc = vk.env$rsvk_$MC)

Arguments

rsid

rsID to search.

pos

Current item.

last

Element (up to but not including) where to end the search (max value = nitems).

mc

Memory-mapped columns object as retured by MmapRSVKfile.