Usage questions should be posted in the plink2-users Google group (https://groups.google.com/g/plink2-users ).
Three kernels from PLINK are taken.
grm uses the same license as PLINK2.
If you find grm useful, please cite:
@article{chang2015second,
title={Second-generation PLINK: rising to the challenge of larger and richer datasets},
author={Chang, Christopher C and Chow, Carson C and Tellier, Laurent CAM and Vattikuti, Shashaank and Purcell, Shaun M and Lee, James J},
journal={Gigascience},
volume={4},
number={1},
pages={s13742--015},
year={2015},
publisher={Oxford University Press}
}