.snp file format

[Liuyh275]

I wanna to understand if the v54.1_1240K_public.snp file column in Eigenstrat format represents "SNP ID","Chromosome","Position in centimorgans","Base-pair coordinate","ALT allele","REF allele"? or the last two column mean "REF allele" and "ALT allele"?
head(file):
rs3094315 1 0.020130 752566 G A
rs12124819 1 0.020242 776546 A G
rs28765502 1 0.022137 832918 T C
rs7419119 1 0.022518 842013 T G
rs950122 1 0.022720 846864 G C

File link :https://reichdata.hms.harvard.edu/pub/datasets/amh_repo/curated_releases/V54/V54.1/SHARE/public.dir/v54.1_1240K_public.snp

[bumblenick]

I prefer to call the last 2 columns "count allele" and "alt allele" For a snp with these columns as "A T" the genotype file counts the A.. Good practice is to include the human reference in the sample list (.ind) as there is no guarantee that the count allele matches reference. Nick Patterson

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On Mon, Jan 9, 2023 at 8:37 AM Liuyh275 ***@***.***> wrote: I wanna to understand if the.snp file column in Eigenstrat format represents "Chromosome","Variant ID","Position in centimorgans","Base-pair coordinate","ALT allele","REF allele"? or the last two column mean "REF allele" and"ALT allele"? [image: image] <https://user-images.githubusercontent.com/122274407/211320297-7bdb432e-16e6-437b-a2bb-9fd8b4feda44.png> This screenshot is come from public file"v54.1_1240K_public.snp" — Reply to this email directly, view it on GitHub <#84>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AEE77B2ACJEJ2ZW2AD4KAULWRQICLANCNFSM6AAAAAATVOEEH4> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>