How this book was made

This book was made using R (R Core Team 2018), and the bookdown package (Xie 2016), which is based on Markdown syntax, using knitr (Xie 2015).

Numerous other R packages were used too:

All of this software is free and open source.

Other resources used include:

  • The quizzes are embedded using H5P iframes.
  • Icons are from iconmonstr and are freely available.


Pruim, Randall. 2015. NHANES: Data from the US National Health and Nutrition Examination Study.
R Core Team. 2018. R: A Language and Environment for Statistical Computing. Vienna, Austria: R Foundation for Statistical Computing.
Xie, Yihui. 2015. Dynamic Documents with R and Knitr. 2nd ed. Boca Raton, Florida: Chapman; Hall/CRC.
———. 2016. Bookdown: Authoring Books and Technical Documents with R Markdown. Boca Raton, Florida: Chapman; Hall/CRC.
Xie, Yihui, Joe Cheng, and Xianying Tan. 2018. DT: A Wrapper of the JavaScript Library ’DataTables’.