html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/7157#issuecomment-1277226702,https://api.github.com/repos/pydata/xarray/issues/7157,1277226702,IC_kwDOAMm_X85MIO7O,43316012,2022-10-13T08:22:22Z,2022-10-13T08:23:43Z,COLLABORATOR,"Thank you for the report.
If you read the documentation of `DataArray.reduce` you will find that func need to be:
> Function which can be called in the form f(x, axis=axis, **kwargs) to return the result of reducing an np.ndarray over an integer valued axis.
So it operates on numpy arrays and not xarray DataArrays.
So try using `np.cumsum` instead.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1406633320