RStudio Presenter

author: Huichun Chien Chien date: December 21 2014 transition: rotate

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RStudio Presentation

• RStudio created a presentation authoring tool within their development environment.
• If you are familiar with slidify, you will also be familiar with this tool
  • Code is authored in a generalized markdown format that allows for code chunks
  • The output is an html5 presentation
  • The file index for the presenter file is .Rpres, which gets converted to an .md file and then to an html file if desired
  • There’s a preview tool in RStudio and GUIs for publishing to Rpubs or viewing/creating an html file

Authoring content

• This is a fairly complete guide
  • http://www.rstudio.com/ide/docs/presentations/overview
• Quick start is
  • file then New File then R Presentation
  • (alt-f then f then p if you want key strokes)
  • Use basically the same R markdown format for authoring as slidify/knitr
    • Single quotes for inline code
    • Tripple qutoes for block code
    • Same options for code evaluation, caching, hiding etcetera

Compiling and tools

- R Studio auto formats and runs the code when you save the document - Mathjax JS library is loaded by default so that $x^2$ yields \(x^2\) - Slide navigation button on the preview; clicking on the notepad icon takes you to that slide in the deck - Clicking on more yields options for - Clearning the knitr cache - Viewing in a browser (creates a temporay html file in AppData/local/temp for me) - Create a html file to save where you want) - A refresh button - A zoom button that brings up a full window

Visuals

transition: linear

• R Studio has made it easy to get some cool html5 effects, like cube transitions with simple options in YAML-like code after the first slide such as transition: rotate
• You can specify it in a slide-by-slide basis

Here’s the option “linear”

transition: linear - Just put transition: linear right after the slide creation (three equal signs or more in a row) - Tansition options - http://www.rstudio.com/ide/docs/presentations/slide_transitions_and_navigation

Hierarchical organization

type: section - If you want a hierarchical organization structure, just add a type: typename option after the slide - This changes the default appearance - http://www.rstudio.com/ide/docs/presentations/slide_transitions_and_navigation - This is of type section

Here’s a subsection

type: subsection

Two columns

• Do whatever for column one
• Then put *** on a line by itself with blank lines before and after

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• Then do whatever for column two

Changing the slide font

font-import: http://fonts.googleapis.com/css?family=Risque font-family: ‘Risque’

• Add a font-family: fontname option after the slide
  • http://www.rstudio.com/ide/docs/presentations/customizing_fonts_and_appearance
• Specified in the same way as css font families
  • http://www.w3schools.com/cssref/css_websafe_fonts.asp
• Use font-import: url to import fonts
• Important caveats
  • Fonts must be present on the system that you’re presenting on, or it will go to a fallback font
  • You have to be connected to the internet to use an imported font (so don’t rely on this for offline presentations)
• This is the Risque
  • http://fonts.googleapis.com/css?family=Risque

Really changing things

- If you know html5 and CSS well, then you can basically change whatever you want - A css file with the same names as your presentation will be autoimported - You can use css: file.css to import a css file - You have to create named classes and then use class: classname to get slide-specific style control from your css - (Or you can apply then within a <span>) - Ultimately, you have an html file, that you can edit as you wish - This should be viewed as a last resort, as the whole point is to have reproducible presentations, but may be the easiest way to get the exact style control you want for a final product

Slidify versus R Studio Presenter

Slidify - Flexible control from the R MD file - Under rapid ongoing development - Large user base - Lots and lots of styles and options - Steeper learning curve - More command-line oriented

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R Studio Presenter - Embedded in R Studio - More GUI oriented - Very easy to get started - Smaller set of easy styles and options - Default styles look very nice - Ultimately as flexible as slidify with a little CSS and HTML knowledge