issue_comments: 328356133

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https://github.com/pydata/xarray/pull/1517#issuecomment-328356133 https://api.github.com/repos/pydata/xarray/issues/1517 328356133 MDEyOklzc3VlQ29tbWVudDMyODM1NjEzMw== 1386642 2017-09-10T16:59:46Z 2017-09-10T16:59:46Z CONTRIBUTOR

Hey Spencer! Thanks. That makes much more sense. I have written nearly identical code for centered differencing, but did not know about apply_ufunc, so I had a couple manual calls to transpose and xr.DataArray. The thing I was hoping for an official way to pass centerd_diff_numpy directly to apply_ufunc, which would avoid some of the boiler-plate in your centered_diff function, which basically rewrites much of the code in this PRs version apply_ufunc.

 
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