html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/1332#issuecomment-289859704,https://api.github.com/repos/pydata/xarray/issues/1332,289859704,MDEyOklzc3VlQ29tbWVudDI4OTg1OTcwNA==,1197350,2017-03-28T18:21:17Z,2017-03-28T18:21:17Z,MEMBER,"> @rabernat, do you think that the proposed keyword additions should be included in xarray or not?

If you are going to have `diff` return a same-length array, then the keywords should allow the user to specify the boundary condition, e.g. extend, reflect, periodic, blank, etc. I agree this would be useful to have in xarray.

I also agree we should copy numpy wherever possible.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,217385961
https://github.com/pydata/xarray/issues/1332#issuecomment-289839737,https://api.github.com/repos/pydata/xarray/issues/1332,289839737,MDEyOklzc3VlQ29tbWVudDI4OTgzOTczNw==,1197350,2017-03-28T17:13:00Z,2017-03-28T17:13:00Z,MEMBER,"> It is just super inconvenient to do array resizing following the diff of a time vector to get timesteps, but maybe this use case is too niche to be useful for the community.

Maybe for the xarray community, but not the xgcm community ;) We definitely want round-trip-compatibly diff and cumsum operations (see xgcm/xgcm#49, which is very close to implemented)
","{""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,217385961
https://github.com/pydata/xarray/issues/1332#issuecomment-289790359,https://api.github.com/repos/pydata/xarray/issues/1332,289790359,MDEyOklzc3VlQ29tbWVudDI4OTc5MDM1OQ==,1197350,2017-03-28T14:35:41Z,2017-03-28T14:35:41Z,MEMBER,"FYI @pwolfram, if you are interested in more ""grid-aware"" finite differencing, you might have a look at xgcm. We are working on it again and have implemented some basic difference and interpolation operators:
http://xgcm.readthedocs.io/en/latest/grids.html#grid-objects ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,217385961