commits: 47b4ad9353b55a1c70f7066a71067f9e9e1e6585

This data as json

sha	message	author_date	committer_date	raw_author	raw_committer	repo	author	committer
47b4ad9353b55a1c70f7066a71067f9e9e1e6585	Add `corr`, `cov`, `std` & `var` to `.rolling_exp` (#8307) * Add `corr`, `cov`, `std` & `var` to `.rolling_exp` From the new routines in numbagg. Maybe needs better tests (though these are quite heavily tested in numbagg), docs, and potentially need to think about types (maybe existing binary ops can help here?)	2023-10-18T16:55:34Z	2023-10-18T16:55:34Z	279c587273ec459ffb5192e60bf8447c05601fa5	cd792325681cbad9f663f2879d8b69f1edbb678f	13221727	5635139	19864447