issue_comments: 206628737

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https://github.com/pydata/xarray/pull/818#issuecomment-206628737 https://api.github.com/repos/pydata/xarray/issues/818 206628737 MDEyOklzc3VlQ29tbWVudDIwNjYyODczNw== 1197350 2016-04-07T00:14:17Z 2016-04-07T00:14:17Z MEMBER

@shoyer I'm having a tough time figuring out where to put the unstacking logic...maybe you can give me some advice.

My first idea was to add a method to the GroupBy class called _maybe_unstack_array and make a call to it here. The problem with that approach is that the group iteration happens over Variables, not full DataArrays, which means that unstacking is harder to do. Would need to store lots of metadata about the stacked / unstacked dimension names, sizes, etc.

If you think that is the right approach, I will forge ahead. But maybe, as the author of both the groupby and stack / unstack logic, you can see an easier way.

 
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