issue_comments: 303244294

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https://github.com/pydata/xarray/issues/1420#issuecomment-303244294 https://api.github.com/repos/pydata/xarray/issues/1420 303244294 MDEyOklzc3VlQ29tbWVudDMwMzI0NDI5NA== 5572303 2017-05-22T23:09:39Z 2017-05-22T23:09:39Z CONTRIBUTOR

I'm just having a hard time wrapping my head around the definitions here. da['some_attr'] = 0 sets a point coordinate, and this point coordinate shows up in da.coords, but not da.dims, because da.dims only pertains to indexing coordinates. Why is this point coordinate attached to every other coordinate then? In other words, why would da.coords['x'] contain some_attr as well?

Somehow it just doesn't feel right intuitively for some point dimension to mess up my comparison between two 1-D coordinates, but I might be missing some important use cases here.

 
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