What is an R package and why are R packages useful?

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Tags

1. #sample
2. #purpose
3. #packages
4. #installs
5. #later
6. #library
7. #functions
8. #complied
9. #during
10. #needed
11. #called
12. #installation
13. #collection
14. #under
15. #directory
16. #specific
17. #default
18. #stored
19. #environment
20. #added