Knitr is a really important tool for reproducible research.
This is a brief guide to knitr, covering the fundamentals of its use with Markdown, AsciiDoc, and LaTeX.
View the thing here.
If you find knitr useful, consider buying R Markdown: The Definitive Guide by Yihui Xie, JJ Allaire, and Garrett Grolemund.
This web site is licensed under CC BY 4.0.