faster range
Nobody has claimed this yet.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 25/100
Research direction
Start by reading the linked base R range.R implementation and collapse's src/programming.c implementation. Check data.table's existing conventions and benchmarks before determining whether a faster range function fits the project. Done requires an agreed scope, API, and measurable performance target.
Written by the indexing model from the issue text.
Description
Not sure if this fits the scope of the project, but it would be lovely to get a faster range function i.e. frange(), since base R just calls min() and max() instead of doing it in a single loop. R implementation for reference: https://github.com/r-devel/r-svn/blob/d56b2b2cbfc1ca3699dcab9d0c3d571ed71e4853/src/library/base/R/range.R#L22 and a faster C implementation from collapse: https://github.com/SebKrantz/collapse/blob/f319f91853721b18fee45ac52d56359d8db7427e/src/programming.c#L1033
- Dominant language
- R
- Stars
- 3.9k
- Forks
- 1.1k
- Avg merge
- 14h 4m
- Merged PRs (30d)
- 4
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.
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