Grafpop with builds < 37 and no rsids.

[rajwanir]

Hello @lonphan @jinyu-ncbi,

I am working on a compilation of various datasets for a data catalog purpose. I wanted to use Grafpop for ancestry predictions. However, many of them orignate from chips using builds <37 and rsids isn't always there.

I wanted to check for ancestry prediction with Grafpop, Is there a way to point the software to the older genome builds so it handles the Chr/position appropriately? or I must liftover the coordinate to hg37/38 first?

Thanks