Search for the specified rsID and returns the first occurrence of VariantKey in the RV file, or zero if not found.

FindRvVariantKeyByRsid(rsid, first = 0, last = vk.env$rsvk_$NROWS,
  mc = vk.env$rsvk_$MC)

Arguments

rsid

rsID to search.

first

First element of the range to search (min value = 0).

last

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

mc

Memory-mapped columns object as retured by MmapRSVKfile.