issue_comments: 434843563

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https://github.com/pydata/xarray/issues/2531#issuecomment-434843563 https://api.github.com/repos/pydata/xarray/issues/2531 434843563 MDEyOklzc3VlQ29tbWVudDQzNDg0MzU2Mw== 102827 2018-10-31T20:52:49Z 2018-10-31T20:52:49Z CONTRIBUTOR

The cause has been explained by @fujiisoup here https://github.com/pydata/xarray/issues/2514#issuecomment-433528586

Nice catch!

For some historical reasons, mean and some reduction method uses bottleneck as default, while count does not.

mean goes through this function

xarray/xarray/core/dask_array_ops.py

Line 23 in b622c5e def dask_rolling_wrapper(moving_func, a, window, min_count=None, axis=-1):

It looks there is another but for this function.

 
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