| citation_package | The LaTeX package to process citations, natbib, biblatex or none |  | X |  |  |  | X |  |  |  | X | 
| code_folding | Let readers to toggle the display of R code, "none", "hide", or "show" | X |  |  |  |  |  |  |  |  |  | 
| colortheme | Beamer color theme to use |  |  |  |  |  |  |  |  |  | X | 
| css | CSS file to use to style document | X |  |  |  |  |  |  | X | X |  | 
| dev | Graphics device to use for figure output (e.g. "png") | X | X |  |  |  | X | X | X | X | X | 
| duration | Add a countdown timer (in minutes) to footer of slides |  |  |  |  |  |  |  |  | X |  | 
| fig_caption | Should figures be rendered with captions? | X | X | X | X |  |  |  | X | X | X | 
| fig_height, fig_width | Default figure height and width (in inches) for document | X | X | X | X | X | X | X | X | X | X | 
| highlight | Syntax highlighting: "tango", "pygments", "kate","zenburn", "textmate" | X | X | X |  |  |  |  |  | X | X | 
| includes | File of content to place in document (in_header, before_body, after_body) | X | X |  | X |  | X | X | X | X | X | 
| incremental | Should bullets appear one at a time (on presenter mouse clicks)? |  |  |  |  |  |  |  | X | X | X | 
| keep_md | Save a copy of .md file that contains knitr output | X |  | X | X | X |  |  | X | X |  | 
| keep_tex | Save a copy of .tex file that contains knitr output |  | X |  |  |  |  |  |  |  | X | 
| latex_engine | Engine to render latex, or ""pdflatex", "xelatex", lualatex" |  | X |  |  |  |  |  |  |  | X | 
| lib_dir | Directory of dependency files to use (Bootstrap, MathJax, etc.) | X |  |  |  |  |  |  | X | X |  | 
| mathjax | Set to local or a URL to use a local/URL version of MathJax to render | X |  |  |  |  |  |  | X | X |  | 
| md_extensions | Markdown extensions to add to default definition or R Markdown | X | X | X | X | X | X | X | X | X | X | 
| number_sections | Add section numbering to headers | X | X |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  |  |  |  | 
| pandoc_args | Additional arguments to pass to Pandoc | X | X | X | X | X | X | X | X | X | X | 
| preserve_yaml | Preserve YAML front matter in final document? |  |  |  |  |  | X |  |  |  |  | 
| reference_docx | docx file whose styles should be copied when producing docx output |  |  | X |  |  |  |  |  |  |  | 
| self_contained | Embed dependencies into the doc | X |  |  |  |  |  |  | X | X |  | 
| slide_level | The lowest heading level that defines individual slides |  |  |  |  |  |  |  |  |  | X | 
| smaller | Use the smaller font size in the presentation? |  |  |  |  |  |  |  | X |  |  | 
| smart | Convert straight quotes to curly, dashes to em-dashes, ... to ellipses, etc. | X |  |  |  |  |  |  | X | X |  | 
| template | Pandoc template to use when rendering file | X | X |  | X |  |  |  |  | X | X | 
|  |  |  |  |  |  |  |  |  |  |  |  | 
| theme | Bootswatch or Beamer theme to use for page | X |  |  |  |  |  |  |  |  | X | 
| toc | Add a table of contents at start of document | X | X | X |  | X | X | X |  |  | X | 
| toc_depth | The lowest level of headings to add to table of contents | X | X | X |  | X | X | X |  |  |  | 
| toc_float | Float the table of contents to the left of the main content | X |  |  |  |  |  |  |  |  |  |