freeCodeCamp's R Programming Tutorial teaches R, the language for statistical computing and data analysis. You learn syntax, data structures, visualization, and statistics through video and interactive examples. The entire course is free on freeCodeCamp.org. After finishing, you can load datasets, create visualizations, and perform statistical analysis in R. R is the tool of choice for statisticians, data scientists in academia, and anyone doing serious statistical work. The main limitation: R has a steeper learning curve than Python for beginners. Also, for business analytics, Python is increasingly preferred.
R is used by 3.3% of professional developers but is dominant in academic statistics and specialized research (source: Stack Overflow Developer Survey 2025).