pymc-devs / pymc-devs/pytensor
Add numpy-like helper `hstack`
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- Dominant language
- Python
- Stars
- 644
- Forks
- 208
- Avg merge
- 2d 14h
- Merged PRs (30d)
- 16
Description
Description
https://numpy.org/doc/stable/reference/generated/numpy.hstack.html
Others like vstack, column_stack and so one are probably missing as well. First step is to list all of them and confirm they are missing in pytensor.tensor
This should not require a new Op, just repurpose existing concatenate and sprinke expand_dims / atleast_nd as needed
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 with the NumPy hstack reference and the public pytensor.tensor API, then inspect the existing concatenate, expand_dims, and atleast_nd helpers. Confirm which NumPy-like stacking helpers are absent, define the intended hstack scope, and verify the completed behavior against the documented NumPy cases.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- numpy, python
- Domain
- data
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100