Welcome to R, a powerful and beginner-friendly programming language for data analysis and statistics. This guide will help you get started quickly and confidently.


What is R?

R is a high-level programming language and environment designed for statistical computing, data analysis, and visualization. It is widely used in:

  • Data analysis and statistical modeling
  • Data visualization
  • Scientific research
  • Geospatial analysis (GIS)
  • Reporting and reproducible research

R is especially popular in academia, research, and data-focused fields due to its extensive collection of packages and strong support for statistical methods.


Why Learn R?

  • Designed for Data Analysis – Built specifically for working with data and statistics.
  • Powerful Visualization Tools – Create high-quality graphs and charts.
  • Extensive Package Ecosystem – Thousands of packages for specialized tasks.
  • Strong Research and Academic Use – Widely used in science, economics, and social sciences.
  • Reproducible Workflows – Tools like R Markdown make it easy to document and share analyses.

Resources for Learning R

In addition to these guides, there are many CSU courses and free resources available for learning R.

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Topic
Prerequisite Group
Course

Here are some of the free resources available organized by category.

Applied / Domain-Specific Resources

Resource Author / Provider Best for (goal) Level
Brian Gerber: Github Brian Gerber Learning to use for loops for simulating purposes Intermediate
Coding and Cookies: R Coding and Cookies Accessing introductory R Material and Online resources Beginner
Mike Johnson: Github Mike Johnson Building a website using R, as well as accessing R Code for water based applications Beginner
Posit Cloud: R Recipes Posit Accessing coding examples of R for learning Beginner - Advanced
R for Spatial Analysis (GitHub) dcarver1 Using R for Geospatial analysis Beginner - Advanced
Xinran Wang: Github Xinran Wang Learning to built Quarto Websites and apply themes Intermediate

Online Coures / Structured Learning Paths

Resource Author / Provider Best for (goal) Level
Colorado State University: Environmental Data Science Applications: Introduction Caitlin Mothes Using R Studio for environmental science applications Intermediate
Colorado State University: Introduction to R Programming Dharma Hoy Getting foundational knowledge in R concepts New to Programming
Colorado State University: Mechanical Engineering Data Analysis in R John Volckens Introductory concepts of R for mechanical engineering applications Beginner
Colorado State University: Environmental Data Science Applications: Water Resources Mike Johnson Learning about water based appilcations of R and Machine Learning Intermediate
Colorado State University: Water Quality Monitoring Ryan Bailey Modeling Lake and Stream Water quality Advanced
Colorado State University: Statistical Learning and Data Mining Stacy Edmondson Learning how to use R studio for statistical applications in medicine, government, science, and business Advanced
Guarav Jetly: Github Guarav Jetly Accessing foundational tools for R through workshop Beginner

In Person Courses / Structured Learning Paths

Resource Author / Provider Best for (goal) Level
Colorado State University: R Programming for Research Brooke Anderson Learning R and using it for research purposes Intermediate

Books / eBooks

Resource Author / Provider Best for (goal) Level
Hands-On Programming with R Garrett Grolemund Learning programming fundamentals in R Beginner
Introduction to R Multiple authors Accessing Foundational concepts and basics of R Beginner
John Volckens: Coursebook John Volckens Learning a wide array of R concepts Beginner
R for Data Science Hadley Wickham & Garrett Grolemund Acessing R related textbook resources Beginner - Advanced

Documentation / Reference / Practice

Resource Author / Provider Best for (goal) Level
R Packages Community-driven Exploring available R packages Intermediate

Video Courses / Structured Learning Paths

Resource Author / Provider Best for (goal) Level
Sage Campus: Introduction to R Sage Campus Introducing onself to R New to Programming
Sage Campus: Practical Data Management in R Sage Campus Wrangling and managing data for ecological applications Intermediate
The Carpentries: Data Analysis and Visualization in R for Ecologists Data Carpentry Data analysis; scientific workflows Intermediate