Read variant info from one BGI file

snp_readBGI(bgifile, snp_id = NULL)

## Arguments

bgifile

Path to one file with extension ".bgi".

snp_id

Character vector of SNP IDs. These should be in the form "<chr>_<pos>_<a1>_<a2>" (e.g. "1_88169_C_T" or "01_88169_C_T"). This function assumes that these IDs are uniquely identifying variants. Default is NULL, and returns information on all variants.

## Value

A data frame containing variant information.