12.2 R Markdown

• R Markdown allows easy work reproducibility by including R code that generates results and narrative text explaining the work. When the R Markdown file is compiled, the R code is executed and the results are appended to a report that can take a variety of formats including HTML and PDF documents.

• An R Markdown file has three basic components, namely, YAML header, text, and R code. At the top of the R Markdown file we need to write the YAML header between a pair of three dashes —.