Astropy quantities are converted to bare arrays when creating an Index
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topic-arrays
topic-indexing
- Dominant language
- Python
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Description
What is your issue?
When provided as a data variable, an astropy Quantity is kept as a Quantity. But when provided as an index through the coords argument when constructing a Dataset, the Quantity is converted to an array, erasing the units. Is it possible to fix this?
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the reported behavior when constructing an xarray Dataset with an astropy Quantity passed through coords, then compare it with the data-variable case described in the issue. Trace the Dataset index-construction path and verify that the completed change preserves the Quantity and its units in both cases.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- data
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100