John McGuigan

See here: https://pandas.pydata.org/pandas-docs/version/1.0.0/development/extending.html#compatibility-with-apache-arrow

- [ ] HWE exact test, possibly in one method - [ ] SNP Call Rate - [ ] Sample Call Rate - [ ] Sample Heterozygosity - [ ]...

Return a boolean array for this kind of comparison: ``` gt_array == "A/A" ``` Should require a minor update to the `GenotypeArray.__eq__` method

https://zzz.bwh.harvard.edu/plink/tutorial.shtml

This would be useful for round-trip IO of plink data, and would allow for specialized methods that require information about family structure or reported sex - [ ] Extension Array...