juniorR
How does indexing work in R?
Updated May 24, 2026
Short answer
Indexing in R is used to access elements using [] or [[]].
Deep explanation
R supports numeric, logical, and name-based indexing.
Real-world example
Extracting specific rows from a dataset.
Common mistakes
- Confusing [] with [[]].
Follow-up questions
- When to use [[]]?
- What is logical indexing?