What is R Markdown?

R Markdown is a file format for making dynamic documents with R. An R Markdown document is written in markdown (an easy-to-write plain text format) and contains chunks of embedded R code. These code chunks can be executed to produce dynamically generated results, such as tables, figures, and analyses. R Markdown documents can be converted into various output formats including HTML, PDF, MS Word documents, presentations, and more. It's commonly used for reproducible research, reports, presentations, and creating dynamic documents that combine code, results, and narrative.