issue_comments: 478546784

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https://github.com/pydata/xarray/issues/2861#issuecomment-478546784 https://api.github.com/repos/pydata/xarray/issues/2861 478546784 MDEyOklzc3VlQ29tbWVudDQ3ODU0Njc4NA== 10050469 2019-04-01T11:47:27Z 2019-04-01T11:47:27Z MEMBER

Up to now I never thought about that the 'notnull' method is acting on more than only the data itself

All xarray operations will return xarray objects. And xarray will try to match coordinates wherever possible.

However, the coordinates are already mathematically identical

In your example above, they are not. Can you help us to reproduce the error with a Minimal Complete Verifiable Example?

 
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