rmarkdown

R Markdown documents (.Rmd) combine code, rendered output, and prose. They can be rendered to HTML, PDF, Word, or slideshows.

Using RStudio IDE

1. Creation: Navigate to File > New File > R Markdown. Follow the wizard to set a title, author, and output format (HTML is recommended).
2. Rendering: Click the Knit button in the IDE or use the keyboard shortcut Cmd/Ctrl + Shift + K to render the file and preview the output.

Manual Authoring

You can create a .Rmd file by writing Markdown prose and inserting code chunks:

• Insert Code Chunk: Use the keyboard shortcut Ctrl + Alt + I (Windows/Linux) or Cmd + Option + I (macOS).
• Run Chunks: Click the run icon within the code chunk in RStudio to execute code interactively.
• Full Render: Use the "Knit to HTML" (or other format) command to execute all chunks and generate the final document.

You can install rmarkdown using several methods depending on your environment:

1. RStudio IDE: No explicit installation is required; RStudio automatically installs and loads it when needed.
2. CRAN (Standard R installation): Use install.packages() if working outside of RStudio.
3. GitHub (Development version): Use the pak package to install the latest development version from GitHub.

Note: If you are not using the RStudio IDE, you must manually install a recent version of Pandoc (>= 1.12.3).

# Standard CRAN installation
install.packages("rmarkdown")

# Development version via pak
# install.packages("pak")
pak::pak('rstudio/rmarkdown')