Philipp Hoffmann

PERF: more realistic np datetime c benchmark

1

See my comments in #57951. This change in the benchmark input range has more coverage of the different logic branches in `np_datetime.c`. The benchmark should run about 1.8x as long...

BUG: low variance arrays' kurtosis wrongfully set to zero

1

- [x] closes #57972 (Replace xxxx with the GitHub issue number) - [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature - [ ] All...