statsmodels / statsmodels/statsmodels
FAQ-D: debugging problems with results attributes
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Description
When writing statsmodels code that works with results instances that are not self, we need to watch out that we don't have the wrapper.
I just reset the scale
res.scale = something
and debugged for an hour, why cov_params didn't change, even though res.scale showed the correct something
Problem:
Setting an attribute of a wrapped results instance, adds this attribute to the wrapper and not to the underlying result instance, res._results
Make sure we have the right res._results to manipulate.
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 FAQ-D and locate the wrapped-results implementation referenced by the issue. Read how res, res._results, res.scale, and cov_params relate, then clarify the documented handling of attributes on wrapped results and define completion by making the debugging guidance unambiguous.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100