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  • Support specifying chunk sizes using labels (e.g. frequency string) · 2 ✖

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id html_url issue_url node_id user created_at updated_at ▲ author_association body reactions performed_via_github_app issue
1444208978 https://github.com/pydata/xarray/issues/7559#issuecomment-1444208978 https://api.github.com/repos/pydata/xarray/issues/7559 IC_kwDOAMm_X85WFOFS dcherian 2448579 2023-02-24T18:27:18Z 2023-02-25T03:46:49Z MEMBER

is there anywhere else in xarray where we have made some choice about how to let the user choose between specifying via indexes or labels?

coarsen vs groupby/groupby_bins/resample.

I explored this idea in this tutorial

I think it may be a fundamental concept for labelled array analysis. You need to pick whether you're working in "index space" like unlabelled arrays, or in "label space". This also came up in this issue where shift (and roll) operate in "index space".

Another example: Alignment is in "label space", broadcasting seems like "index space" (you just change shapes, but it does use dimension names to do that so maybe 50/50).

 
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   Support specifying chunk sizes using labels (e.g. frequency string) 1599056009
1444165475 https://github.com/pydata/xarray/issues/7559#issuecomment-1444165475 https://api.github.com/repos/pydata/xarray/issues/7559 IC_kwDOAMm_X85WFDdj TomNicholas 35968931 2023-02-24T18:07:08Z 2023-02-24T18:07:08Z MEMBER

The chunk_by_labels functionality seems quite useful even when not talking about times, so I would be :+1: for that kind of option.

On the API question is there anywhere else in xarray where we have made some choice about how to let the user choose between specifying via indexes or labels? Apart from just .isel vs .sel I mean

 
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   Support specifying chunk sizes using labels (e.g. frequency string) 1599056009

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