issue_comments: 375484121

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https://github.com/pydata/xarray/issues/2007#issuecomment-375484121 https://api.github.com/repos/pydata/xarray/issues/2007 375484121 MDEyOklzc3VlQ29tbWVudDM3NTQ4NDEyMQ== 5635139 2018-03-22T22:56:09Z 2018-03-22T22:56:09Z MEMBER

Though I'm not sure you need the construct machinery.

IIUC you need to copy a window-sized amount of data from the front of the array onto the back.

You could do that with construct-like machinery, which would save a copy - though not a large copy

 
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