Thanks for letting me know. What is it that only hail can do? Other than distributed variant queries. And conversely, what can only plink do, what can only regenie do, what can only SAIGE do?
For example, can any of them do LMM GWAS? multi trait analysis?, rare variant analysis?
All I know is that regenie is good at LMM and hail is good at distributed processing. It seems like plink and hail can be used for a variety of purposes, but regenie is limited?
You can find the manual for HAIL here https://hail.is/docs/0.2/index.html and the manual for PLINK here https://www.cog-genomics.org/plink/2.0/.