Rdatatable / Rdatatable/data.table
Add rollequal=TRUE|FALSE
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feature request
joins
non-equi joins
- Dominant language
- R
- Stars
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- Avg merge
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- Merged PRs (30d)
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Description
Submitted by: Matt Dowle; Assigned to: Nobody; R-Forge link
As raised here :
The rollequal=FALSE would be done at C level to avoid the R level allocs.
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 linked Stack Overflow discussion and the R-Forge tracker entry, then locate data.table's rolling-join implementation and its C-level path. Confirm the intended rollequal=TRUE|FALSE behavior and verify that FALSE avoids the stated R-level allocations; done means the option works for rolling joins and has coverage in the relevant tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- r
- Domain
- data
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100