issue_comments: 449214046

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https://github.com/pydata/xarray/pull/2612#issuecomment-449214046 https://api.github.com/repos/pydata/xarray/issues/2612 449214046 MDEyOklzc3VlQ29tbWVudDQ0OTIxNDA0Ng== 1217238 2018-12-21T02:00:53Z 2018-12-21T02:00:53Z MEMBER

@pydata/xarray any opinions on what the default value for the boundary argument to coarsen() should be?

Personally, I like boundary='exact', but I also work mostly with simulated data with dimensions setup to be exact powers of 2 :). 

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