output_format

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Define an R Markdown output format

Define an R Markdown output format based on a combination of knitr and pandoc options.

Usage
output_format(knitr, pandoc, keep_md = FALSE, clean_supporting = TRUE,
  df_print = NULL, pre_knit = NULL, post_knit = NULL,
  pre_processor = NULL, intermediates_generator = NULL,
  post_processor = NULL, on_exit = NULL, base_format = NULL)
Arguments
knitr

Knitr options for an output format (see knitr_options)

pandoc

Pandoc options for an output format (see pandoc_options)

keep_md

Keep the markdown file generated by knitting. Note that if this is TRUE then clean_supporting will always be FALSE.

clean_supporting

Cleanup any supporting files after conversion see render_supporting_files

df_print

Method to be used for printing data frames. Valid values include "default", "kable", "tibble", and "paged". The "default" method uses 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.

pre_knit

An optional function that runs before kniting which receives the input (input filename passed to render) and ... (for future expansion) arguments.

post_knit

An optional function that runs after kniting which receives the metadata, input_file, runtime, and ... (for future expansion) arguments. This function can return additional arguments to pass to pandoc and can call knitr::knit_meta_add to add additional dependencies based on the contents of the input_file or on other assets side by side with it that may be used to produce html with dependencies during subsequent processing.

pre_processor

An optional pre-processor function that receives the metadata, input_file, runtime, knit_meta, files_dir, and output_dir and can return additional arguments to pass to pandoc.

intermediates_generator

An optional function that receives the original input_file, its encoding, and the intermediates directory (i.e. the intermediates_dir argument to render). The function should generate and return the names of any intermediate files required to render the input_file.

post_processor

An optional post-processor function that receives the metadata, input_file, output_file, clean, and verbose parameters, and can return an alternative output_file.

on_exit

A function to call when rmarkdown::render() finishes execution (as registered with a on.exit handler).

base_format

An optional format to extend.

Value

An R Markdown output format definition that can be passed to render.

See Also

render, knitr_options, pandoc_options

Aliases
  • output_format
Examples
# NOT RUN {
output_format(knitr = knitr_options(opts_chunk = list(dev = 'png')),
              pandoc = pandoc_options(to = "html"))
# }
# NOT RUN {
# }
Documentation reproduced from package rmarkdown, version 1.9, License: GPL-3

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