plink-ped-format is a text data format created in 2007.
git clone https://github.com/WonyoungCho/plink/issues| #1958on PLDB | 17Years Old |
The "ped" file is a commonly used format for holding pedigree and genotype data. Files in this format usually end in ".ped". There are several variants of the format. Used by plink.
1 1 0 0 1 0 G G 2 2 C C
1 2 0 0 2 0 A A 0 0 A C
1 3 1 2 1 2 0 0 1 2 A C
2 1 0 0 1 0 A A 2 2 0 0
2 2 0 0 2 2 A A 2 2 0 0
2 3 1 2 1 2 A A 2 2 A A