> For the complete documentation index, see [llms.txt](https://www.selinux.tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.selinux.tech/scala/function-operation/r.md).

# R

- [range](https://www.selinux.tech/scala/function-operation/r/range.md)
- [reduce](https://www.selinux.tech/scala/function-operation/r/reduce.md)
- [reduceLeft](https://www.selinux.tech/scala/function-operation/r/reduceleft.md)
- [reduceLeftOption](https://www.selinux.tech/scala/function-operation/r/reduceleftoption.md)
- [reduceOption](https://www.selinux.tech/scala/function-operation/r/reduceoption.md)
- [reduceRight](https://www.selinux.tech/scala/function-operation/r/reduceright.md)
- [reduceRightOption](https://www.selinux.tech/scala/function-operation/r/reducerightoption.md)
- [reverse](https://www.selinux.tech/scala/function-operation/r/reverse.md)
- [reverseIterator](https://www.selinux.tech/scala/function-operation/r/reverseiterator.md)
- [reverseMap](https://www.selinux.tech/scala/function-operation/r/reversemap.md)
- [runWith](https://www.selinux.tech/scala/function-operation/r/runwith.md)