![]() ![]() Note that YAML is very sensitive to white space and indents. You can add parameters to the YAML metadata at the top of your R Markdown (.Rmd) file that control the rendering of the entire document. The first thing to know is that there are at least three places that you can configure the knitted output within your R Markdown file: I have only tested this with the HTML output format, although a lot of it may apply to others. ![]() But below are the bits that I have found myself using a few times, along with some tips and tricks picked up along the way. ![]() There are several areas I haven’t dug into yet. The library that generates the output from R Markdown, Knitr, has extensive high quality documentation here that if you want to become familiar with what’s on offer in detail is well worth a read. But if it’s a regular report, particularly a lengthy one, then spending some time to make it attractive and usable might be worth it. For a quick one-off render of something adhoc you may not want to spend the time fiddling with these settings. There are several ways to control the content and style of the output. Whilst it’s very simple to use in its basic form, the rendering process turns out to be a lot more sophisticated and controllable than I’d originally realised. with new data in the future, you can just hit a button and off it goes. If you’ve designed it considerately then when you need to update it with e.g. I find the knit-to-html workflow a great way to share reports that will likely have to be re-run in future with colleagues. You render or “knit” the file by hitting the “Knit” button in RStudio (or manually calling the render() function from the rmarkdown library if you have a preference or need to do so) and get back a file in one of several standard formats that you can for instance share with colleagues who know nothing about R.
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