Single ESS value as min(ess_bulk, ess_tail)
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feature
interface
- Dominant language
- R
- Stars
- 171
- Forks
- 26
- Avg merge
- 2d 18h
- Merged PRs (30d)
- 3
Description
Currently, we have one rhat value as default (worst case of rhat_bulk and rhat_tail) but always two ESS values, ess_bulk and ess_tail, without a single ess generic. Could it make sense to add such an ess generic and make the default min(ess_bulk, ess_tail)?
Specifically, @avehtari what would you think about 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 reviewing how the existing generic rhat relates to rhat_bulk and rhat_tail, then compare that behavior with the separate ess_bulk and ess_tail values. The issue does not name files or tests; completion would require agreement on the API and default ESS definition before implementation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- r
- Domain
- data
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100