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/pull/3877#issuecomment-603134393,https://api.github.com/repos/pydata/xarray/issues/3877,603134393,MDEyOklzc3VlQ29tbWVudDYwMzEzNDM5Mw==,3958036,2020-03-24T09:42:11Z,2020-03-24T09:42:11Z,CONTRIBUTOR,"For specifying which object, one possibility would be to pass an `int` to `combine_attrs` in `merge()`, `concat()` or `combine_by_coords()`, or a tuple of `int` to `combine_nested`, giving the index of the object to use attributes from. This feature would need new tests writing though, so I'd suggest implementing it in a new PR.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,585868107 https://github.com/pydata/xarray/pull/3877#issuecomment-602806659,https://api.github.com/repos/pydata/xarray/issues/3877,602806659,MDEyOklzc3VlQ29tbWVudDYwMjgwNjY1OQ==,3958036,2020-03-23T19:23:47Z,2020-03-23T19:23:47Z,CONTRIBUTOR,"> Should there perhaps be another option to specify which object to get the attrs from? I'm just thinking by analogy to how open_mfdataset now lets you specify which file you want the attrs from. That would actually be nice to have in `concat()` for a use-case I have. It's not immediately obvious to me how to implement it though. For `merge()` or `concat()` you could give an integer index. I think `open_mfdataset` used the file-name (?), but there's no equivalent for `combine_by_coords` or `combine_nested` is there?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,585868107