An html fragment is suitable for inclusion into an external html page. See html_document for full details - this is a minor variation that assumes you will include the output into an existing document (e.g. a blog post).

  number_sections = FALSE,
  section_divs = TRUE,
  fig_width = 7,
  fig_height = 5,
  fig_retina = 2,
  fig_caption = TRUE,
  dev = "png",
  df_print = "default",
  mathjax = TRUE,
  includes = NULL,
  keep_md = FALSE,
  md_extensions = NULL,
  pandoc_args = NULL,



TRUE to number section headings


Wrap sections in <div> tags, and attach identifiers to the enclosing <div> rather than the header itself.


Default width (in inches) for figures


Default height (in inches) for figures


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).


TRUE to render figures with captions


Graphics device to use for figure output (defaults to png)


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 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. See Data frame printing section in bookdown book for examples.


TRUE to convert $ and $$ math blocks into MathJax compatible output. Note that you'll still need to ensure that the page where the fragment is included loads the required MathJax scripts.


Named list of additional content to include within the document (typically created using the includes function).


Keep the markdown file generated by knitting.


Markdown extensions to be added or removed from the default definition of R Markdown. See the rmarkdown_format for additional details.


Additional command line options to pass to pandoc


Additional arguments passed to html_document


R Markdown output format to pass to render


See the online documentation for additional details on using the html_fragment format.