How to convert plink data from 38th assembly to 37
My goal is to downgrade plink(.bed, bim, fam) data from the 38th build to 37. What is the easiest way to do this?
I was reading liftOver documentation and I am confused. Because it only accepts its own .bed format to do the lifting. It looks like I can prepare such a file, from plink bim, but what with the rest plink files, bed, and fam? Are they not require any modification? Also if I were to create a liftOver bed file, I notice that there are two coordinates for each SNP:
chr1 743267 743268 rs3115860 chr1 766408 766409 rs12124819 chr1 773885 773886 rs17160939
And there is only one coordinate in the plink .map file, how do I convert my map file?
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