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/3675#issuecomment-572506873,https://api.github.com/repos/pydata/xarray/issues/3675,572506873,MDEyOklzc3VlQ29tbWVudDU3MjUwNjg3Mw==,6815844,2020-01-09T10:51:40Z,2020-01-09T10:51:40Z,MEMBER,"Hi @sfinkens. Thank you for raising an issue. I think what you actually want would be ```python In [16]: ds = xr.Dataset({'data': ('x', [1, 2]), ...: 'x': ('x', [1, 2]) ...: }, coords={'x_bnds': (('x', 'bnds'), [[0.5, 1.5], [1.5, ...: 2.5]])}) ...: ds['x'].attrs['bounds'] = 'x_bnds' ...: ds = ds.expand_dims({'time': [0]}) In [17]: ds Out[17]: Dimensions: (bnds: 2, time: 1, x: 2) Coordinates: * time (time) int64 0 * x (x) int64 1 2 x_bnds (x, bnds) float64 0.5 1.5 1.5 2.5 Dimensions without coordinates: bnds Data variables: data (time, x) int64 1 2 ``` where `x_bnds` would be a coordinate rather than a data variable.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,547373923