We also shouldn’t fail to mention that the most recent release of RStudio included several enhancements to R Markdown document editing. There’s now an optional outline view that enables quick navigation across larger documents: Here’s what tabbed sections look like within a rendered document: tabset attribute to appear within tabs rather than as standalone sections. This will cause all sub-headers of the header with the. tabset class attribute to headers within a document. You can organize content using tabs by applying the. Note that you can specify code_folding: show to still show all R code by default but then allow users to hide the code if they wish. Note that each chunk has it’s own toggle for showing or hiding code and there is also a global menu for operating on all chunks at once. Here’s the default HTML document template with code folding enabled. Users can then choose to show hidden R code chunks either indvidually or document wide. The code_folding: hide option enables you to include R code but have it hidden by default. In some cases it may be appropriate to exclude code entirely ( echo = FALSE) but in other cases you might want the code available but not visible by default. When the knitr chunk option echo = TRUE is specified (the default behavior) the R source code within chunks is included within the rendered document. Here’s what the floating table of contents looks like on one of the R Markdown website’s pages: The floating table of contents will always be visible even when the document is scrolled. You can specify the toc_float option to float the table of contents to the left of the main document content. There are also three new formats for creating GitHub, OpenDocument, and RTF documents as well as a number of smaller enhancements and bug fixes (see the package NEWS for all of the details).
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