0.9 License

We want you to be able to enjoy this book completely free of charge so we’ve licensed it according to the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License (https://creativecommons.org/licenses/by-nc/4.0/).

If you teach R, feel free to use some or all of the content in this book to help support your own students. The only thing we ask is that you acknowledge the original source and authors. If you find this book useful or have any comments or suggestions we would love to hear from you (you’ll find us lurking on X and GitHub).


This is a human-readable summary of (and not a substitute for) the license. Please see https://creativecommons.org/licenses/by-nc/4.0/legalcode for the full legal text.

You are free to:

  • Share—copy and redistribute the material in any medium or format

  • Adapt—remix, transform, and build upon the material

The licensor cannot revoke these freedoms as long as you follow the license terms.

Under the following terms:

  • Attribution—You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

  • NonCommercial—You may not use the material for commercial purposes.