Fix duck array ops that were calling bottleneck on sparse arrays #3254
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
min and max are now working.
notnull was already fixed by one of my earlier PRs.
std/var/median are still broken, but only because sparse hasn't implemented
the corresponding NumPy functions yet (nanstd, nanvar and nanmedian).
rank needs pure NumPy implementation (not via bottleneck) if we want it to
work on sparse or dask arrays.
black . && mypy . && flake8