The solution to the above problem is very simple once you are aware of it. This works, but when your goal is to first create functioning code that you can run as-is and share with others, creating an R Markdown file from such a script with that approach can become a time consuming and error-prone process of copy-pasting the code into code chunks and maintaining it in two places in case you want to also keep the runnable script version. When creating R Markdown documents, the workflow often looks something like the following: As if this was not handy enough, the package comes with a premade RStudio addin, so you can get the same functionality just clicking in the IDE, or assigning a keyboard shortcut to it.Ĭreating beautiful, multi format reports directly from R scripts If using RStudio, all you need to do to get the live preview is call the function and the default values of the arguments will take care of launching the live preview of the document currently active in the RStudio editor. Enter the infinite_moon_reader() function from the xaringan package.Įven though the xaringan package focuses on creating slides with the remark.js JavaScript library, this function works to provide a live preview with any single-file html output, be it a report, slides such as ioslides, a shiny document or another format. However, if you are producing presentation slides or a more complex html report with R Markdown, you are stuck with re-knitting every time you want to see the updated content in action. Similarly for blogdown users, the serve_site() function provides live updates of the blog as the content is edited and saved. If you are familiar with R notebooks, you probably know that as you edit the notebook in RStudio and save, the preview will automatically update in the RStudio viewer. When quiet = FALSE, the render function should also print a line of output using the message() function indicating which output file should be previewed.Live preview of R Markdown files with xaringan’s infinite_moon_reader() It will be set to a specific filename if a front-end tool is attempting to preview it (e.g., RStudio IDE via the Knit button). Note that the input_file argument will be NULL when the entire site is being generated. These files are the ones to be removed by the clean_site() function. The function should accept the input_file, output_format, envir, quiet, and encoding arguments.Ĭlean: An R function that returns relative paths to the files generated by render_site(). Render: An R function that can be called to generate the site. This path should be relative to the site directory (e.g., "." or "_site"). Output_dir: The directory where the website output is written to. Name: The name for the website (e.g., the parent directory name). title : "My Book" output : bookdown::gitbook site : bookdown::bookdown_site -Ī site generation function should return a list with the following elements: When referring to an icon, you should use its full name including the icon set prefix (e.g., fa-github, ion-social-twitter, and glyphicon-time). Icons from three different icon sets are available. You can include both internal and external links on the navigation bar. You can include menus on the navigation bar, and those menus can have separators ( text: "-") and internal headings ( text without a corresponding href). You can align navigational items either to the left or to the right. You can use the type field to choose between the default and inverse navigation bar styles (each theme includes distinct colors for “default” and “inverse” navigation bars). This example demonstrates a number of capabilities of navigation bars: Name : "my-website" navbar : title : "My Website" type : inverse left : - text : "Home" icon : fa-home href : index.html - text : "About" icon : fa-info href : about.html - text : "More" icon : fa-gear menu : - text : "Heading 1" - text : "Page A" href : page-a.html - text : "Page B" href : page-b.html - text : "-" - text : "Heading 2" - text : "Page C" href : page-c.html - text : "Page D" href : page-d.html right : - icon : fa-question fa-lg href : 19.7 Output arguments for render functions.
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