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/4484#issuecomment-705078481,https://api.github.com/repos/pydata/xarray/issues/4484,705078481,MDEyOklzc3VlQ29tbWVudDcwNTA3ODQ4MQ==,1217238,2020-10-07T17:17:48Z,2020-10-07T17:17:48Z,MEMBER,"I think some version of `xarray.map` could indeed be pretty useful more generally. In particular, it could implement each of the ways to ""align"" variables between different datasets, e.g., should we use the intersection of the variables, or the union, inserting dummy variables with fill values? The `dataset_join` argument to `xarray.apply_ufunc` controls this behavior, but it would be nice to have a self-contained version of this.

One challenge for using this internally in xarray (vs. implementing things only on Dataset objects) is that the coordinates on the DataArray objects inside a Dataset can be redundant, so mapping over DataArrays may be less efficient, due to duplicate work on coordinates. In contrast, once everything is in Dataset objects, all the variables/coordinates are pre-aligned and de-deduplicated.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,714228717
https://github.com/pydata/xarray/pull/4484#issuecomment-704033519,https://api.github.com/repos/pydata/xarray/issues/4484,704033519,MDEyOklzc3VlQ29tbWVudDcwNDAzMzUxOQ==,1217238,2020-10-06T05:19:44Z,2020-10-06T05:19:44Z,MEMBER,"I think this could make sense as a generalization of `Dataset.map`. I would indeed be interested to hear more about the specific use cases that motivated this, though.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,714228717
https://github.com/pydata/xarray/pull/4484#issuecomment-704031645,https://api.github.com/repos/pydata/xarray/issues/4484,704031645,MDEyOklzc3VlQ29tbWVudDcwNDAzMTY0NQ==,1217238,2020-10-06T05:13:29Z,2020-10-06T05:13:29Z,MEMBER,"If we're doing to do this, I would suggest that the right signature is `xarray.map(func, *datasets, **optional_kwargs)`, matching Python's builtin `map`.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,714228717