/test-data/rgtestouts/rgQC/tinywga.frq

 1 CHR         SNP   A1   A2          MAF  NCHROBS
 2  22   rs2283802    4    2       0.2593       54
 3  22   rs2267000    4    2       0.4259       54
 4  22  rs16997606    1    3       0.1111       54
 5  22   rs4820537    1    3       0.4444       54
 6  22   rs3788347    3    1        0.463       54
 7  22    rs756632    4    2      0.09259       54
 8  22   rs4820539    1    3       0.2778       54
 9  22   rs2283804    1    2       0.3333       54
10  22   rs2267006    3    1       0.3333       54
11  22   rs4822363    4    2      0.07407       54
12  22   rs5751592    4    2       0.1667       54
13  22   rs5759608    2    4       0.4259       54
14  22   rs5759612    3    1       0.4259       54
15  22   rs2267009    3    4       0.2593       54
16  22   rs2267010    3    1      0.03704       54
17  22   rs5759636    4    2      0.07407       54
18  22   rs2071436    4    2       0.2593       54
19  22   rs2267013    3    1       0.1111       54
20  22   rs6003566    3    1      0.09259       54
21  22   rs2256725    2    1       0.1111       54
22  22  rs12160770    1    3      0.01923       52
23  22   rs5751611    2    4       0.4615       52
24  22    rs762601    1    3       0.3333       54
25  22   rs2156921    3    1       0.3333       54
26  22   rs4822375    1    3       0.3333       54