Shiny

Prof. Eric A. Suess

Shiny

To review, here are all of the different ways in which shiny can be used to make dynamic visualizations.

• flexdashboard
• Shiny document
• Shiny App in two files
• Shiny App in one file
• Shiny Web Application in one file and in an R Project

Where to learn about Shiny

• The Shiny website.
• The R Studio Cheatsheet is an excellent reference. shiny
• The R Studio Shiny course
• The R Studio Shiny gallery
• The Plotly Shiny gallery
• Hadley’s new book Mastering Shiny

Flexdashboard

• Check out the flexdashboard website.
  

• To create a new flexdashboard we will install the package flexdashboard and then load an R Markdown Template.

• To load a flexdashboard template.

  File > New File > R Markdown > From Template > Flex Dashboard

Flexdashboard Example

One more example, how to connect plots in a dashboard? This is called Brushing. Give this example from the flexdashboard examples a try.

• This is my First Flex Dashabord
• ggplot2 Brushing

Shiny document

• Here is a nice article Introduction to interactive documents. It give an introduction to making an R Notebook with a shiny app embedded.
• This is my First Shiny document

Shiny App in two files

• Here is my First Shiny App in two files

• And here are the links to the two files, as in the book.

  • ui.R
  • server.R

• To create a Shiny App in two files in R Studio.

  File > New File > Shiny Web App > Mutliple File (ur.R/server.R)

Shiny App in one file

• Here is my First Shiny App in one file.

  • app.R

• To create a Shiny App in two files in R Studio.

  File > New File > Shiny Web App > Single File (app.R)

Shiny Web Application in one file and in an R Project

• Alternatively, you can create an R Project containing a Shiny App in one file.

  Project > New Project > New Directory > Shiny Web Application