issue_comments: 512908842

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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/3141#issuecomment-512908842 https://api.github.com/repos/pydata/xarray/issues/3141 512908842 MDEyOklzc3VlQ29tbWVudDUxMjkwODg0Mg== 1217238 2019-07-18T17:20:17Z 2019-07-18T17:20:17Z MEMBER

It looks like ds.groupby('time.year').apply(lambda x: x.cumsum(dim='time')) mostly works for now.

But yes, it would be great to add this.

 
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