tidymodels / tidymodels/rsample
Stratification based on censored data
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feature
- Dominant language
- R
- Stars
- 343
- Forks
- 67
- Avg merge
- 1h 9m
- Merged PRs (30d)
- 2
Description
We currently don't allow stratification based on Surv objects and instead suggest to use the time or event variable directly:
Given that we've settled on the advice to make the Surv object outside of a recipe, people may not have the individual variables available. Soo we should rethink 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 reading the stratification logic referenced in R/misc.R at lines 105-107 and review how Surv objects are currently rejected. Define the desired behavior for stratification from a Surv object, then add coverage for the agreed behavior before updating the 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