ymlthis makes it easy to write YAML front matter for R Markdown and related documents. yml_*() functions write functions and use_*() functions let you write the resulting YAML to your clipboard or to .yml files related to your project.


You can install ymlthis from CRAN with:


Or you can install the development version of ymlthis from GitHub with:


yml() creates a basic yml object returns simple YAML with the author and date.

ymlthis supports many YAML arguments, with YAML-generating functions prefixed with yml_*():


ymlthis also includes an add-in that will create YAML for you and put it in a file, such as an .Rmd file, or on your clipboard.