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knitr (version 1.52)
A General-Purpose Package for Dynamic Report Generation in R
Description
Provides a general-purpose tool for dynamic report generation in R using Literate Programming techniques.
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Install
install.packages('knitr')
Monthly Downloads
1,061,381
Version
1.52
License
GPL
Maintainer
Yihui Xie
Last Published
September 6th, 2026
Functions in knitr (1.52)
Search all functions
is_latex_output
Check the current input and output type
knitr-package
A general-purpose tool for dynamic report generation in R
plot_crop
Crop a plot (remove the edges) using PDFCrop or ImageMagick
opts_template
Template for creating reusable chunk options
partition_chunk
Partition chunk options from the code chunk body
rand_seed
An unevaluated expression to return .Random.seed if exists
opts_hooks
Hooks for code chunk options
opts_knit
Options for the knitr package
pandoc
A Pandoc wrapper to convert documents to other formats
render_html
Set or get output hooks for different output formats
pat_rnw
Set regular expressions to read input documents
rnw2pdf
Convert an
Rnw
document to PDF
set_header
Set the header information
set_alias
Set aliases for chunk options
raw_block
Mark character strings as raw blocks in R Markdown
read_chunk
Read chunks from an external script
rocco
Knit R Markdown using the classic Docco style
set_parent
Specify the parent document of child documents
sew
Wrap evaluated results for output
rst2pdf
A wrapper for rst2pdf
extract_raw_output
Mark character strings as raw output that should not be converted
stitch
Automatically create a report based on an R script and a template
spin
Spin goat's hair into wool
wrap_rmd
Wrap long lines in Rmd files
vignette_engines
Package vignette engines
write_bib
Generate BibTeX bibliography databases for R packages
spin_child
Spin a child R script
Sweave2knitr
Convert Sweave to knitr documents
all_patterns
All built-in patterns
asis_output
Mark an R object with a special class
clean_cache
Clean cache files that are probably no longer needed
convert_chunk_header
Convert the in-header chunk option syntax to the in-body syntax
current_input
Query the current input filename
all_labels
Get all chunk labels in a document
cache_engines
Cache engines of other languages
combine_words
Combine multiple words into a single string
hook_pdfcrop
Built-in chunk hooks to extend knitr
fig_chunk
Obtain the figure filenames for a chunk
hook_plot_html
Default plot hooks for different output formats
fig_path
Path for figure files
hook_ffmpeg_html
Hooks to create animations in HTML output
dep_auto
Build automatic dependencies among chunks
image_uri
Encode an image file to a data URI
download_image
Download an image from the web and include it in a document
hook_movecode
Some potentially useful document hooks
dep_prev
Make later chunks depend on previous chunks
include_url
Embed a URL as an HTML iframe or a screenshot in
knitr
documents
is_low_change
Compare two recorded plots
knit_code
The code manager to manage code in all chunks
inline_expr
Wrap code using the inline R expression syntax
knit2html
Convert markdown to HTML using knit() and litedown::mark()
knit_hooks
Hooks for R code chunks, inline R code and output
kable
Create tables in LaTeX, HTML, Markdown and reStructuredText
knit_meta
Metadata about objects to be printed
imgur_upload
Upload an image to imgur.com
knit_expand
A simple macro preprocessor for templating purposes
knit
Knit a document
knit_exit
Exit knitting early
include_graphics
Embed external images in
knitr
documents
knit_global
The global environment for evaluating code
knit_filter
Spell check filter for source documents
knit_engines
Engines of other languages
knit_watch
Watch an input file continuously and knit it when it is updated
engine_output
An output wrapper for language engine output
knit2pandoc
Convert various input files to various output files using
knit()
and Pandoc
knit2pdf
Convert Rnw or Rrst files to PDF
knit_theme
Syntax highlighting themes
knit_rd
Knit package documentation
knit2wp
Knit an R Markdown document and post it to WordPress
knit_child
Knit a child document
knit_params
Extract knit parameters from a document
knit_params_yaml
Extract knit parameters from YAML text
knit_patterns
Patterns to match and extract R code in a document
opts_chunk
Default and current chunk options
load_cache
Load the cache database of a code chunk
knit_print
A custom printing function