tutorial: Tutorial document format
In learnr: Interactive Tutorials for R

Long-form tutorial which includes narrative, figures, videos, exercises, and questions.

tutorial(
  fig_width = 6.5,
  fig_height = 4,
  fig_retina = 2,
  fig_caption = TRUE,
  progressive = FALSE,
  allow_skip = FALSE,
  dev = "png",
  df_print = "paged",
  smart = TRUE,
  theme = "rstudio",
  highlight = "textmate",
  ace_theme = "textmate",
  mathjax = "default",
  extra_dependencies = NULL,
  css = NULL,
  includes = NULL,
  md_extensions = NULL,
  pandoc_args = NULL,
  ...
)

`fig_width`	Default width (in inches) for figures
`fig_height`	Default height (in inches) for figures
`fig_retina`	Scaling to perform for retina displays (defaults to 2, which currently works for all widely used retina displays). Set to `NULL` to prevent retina scaling. Note that this will always be `NULL` when `keep_md` is specified (this is because `fig_retina` relies on outputting HTML directly into the markdown document).
`fig_caption`	`TRUE` to render figures with captions
`progressive`	Display sub-topics progressively (i.e. wait until previous topics are either completed or skipped before displaying subsequent topics).
`allow_skip`	Allow users to skip sub-topics (especially useful when `progressive` is `TRUE`).
`dev`	Graphics device to use for figure output (defaults to png)
`df_print`	Method to be used for printing data frames. Valid values include "default", "kable", "tibble", and "paged". The "default" method uses a corresponding S3 method of `print`, typically `print.data.frame`. The "kable" method uses the `knitr::kable` function. The "tibble" method uses the tibble package to print a summary of the data frame. The "paged" method creates a paginated HTML table (note that this method is only valid for formats that produce HTML). In addition to the named methods you can also pass an arbitrary function to be used for printing data frames. You can disable the `df_print` behavior entirely by setting the option `rmarkdown.df_print` to `FALSE`.
`smart`	Produce typographically correct output, converting straight quotes to curly quotes, `---` to em-dashes, `--` to en-dashes, and `...` to ellipses.
`theme`	Visual theme ("rstudio", default", "cerulean", "journal", "flatly", "readable", "spacelab", "united", "cosmo", "lumen", "paper", "sandstone", "simplex", or "yeti").
`highlight`	Syntax highlighting style. Supported styles include "default", "tango", "pygments", "kate", "monochrome", "espresso", "zenburn", "haddock", and "textmate". Pass ‘NULL’ to prevent syntax highlighting. Note, this value only pertains to standard rmarkdown code, not the Ace editor highlighting.
`ace_theme`	Ace theme supplied to the ace code editor for all exercises. See `learnr:::ACE_THEMES` for a list of possible values. Defaults to `"textmate"`.
`mathjax`	Include mathjax. The "default" option uses an https URL from a MathJax CDN. The "local" option uses a local version of MathJax (which is copied into the output directory). You can pass an alternate URL or pass `NULL` to exclude MathJax entirely.
`extra_dependencies`	Additional function arguments to pass to the base R Markdown HTML output formatter `html_document_base`
`css`	One or more css files to include
`includes`	Named list of additional content to include within the document (typically created using the `includes` function).
`md_extensions`	Markdown extensions to be added or removed from the default definition or R Markdown. See the `rmarkdown_format` for additional details.
`pandoc_args`	Additional command line options to pass to pandoc
`...`	Forward parameters to html_document