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/4047#issuecomment-632918356,https://api.github.com/repos/pydata/xarray/issues/4047,632918356,MDEyOklzc3VlQ29tbWVudDYzMjkxODM1Ng==,905179,2020-05-22T21:37:38Z,2020-05-22T21:37:38Z,NONE,"I have a couple of questions about _ARRAY_DIMENSIONS.
Let me make sure I understand how it is used.
Suppose I am given an array X with shape(10,20,30) and
an _ARRAY_DIMENSION attribute on X with the contents
_ARRAY_DIMENSION=[""time"", ""lon"", ""lat""]
Then this is equivalent to the following partial netcdf CDL:
netcdf ... {
dims: time=10; lon=20; lat=30;
...}
Correct?
I assume that if there are conflicts where two variables end
up assigning different sIzes to the same named dimension, then
that generates an error.
Finally it is unclear where xarray puts these dimensions.
In the closest enclosIng Group? or in the root group?
=DennIs Heimbigner
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