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R (programming language) - Wikipedia
r/wikipedia - Reddit
R: What is R? - The R Project for Statistical Computing
R: The R Project for Statistical Computing
R Programming - Wikibooks, open books for an open world
R Programming/Introduction - Wikibooks, open books for an …
R (programming language) - Wikiversity
R (programming language) - Simple English Wikipedia, the free …
The Comprehensive R Archive Network
What is R? - An Introduction to The Statistical Computing …