Interactive Dashboards with Shiny

25 lessons

Welcome to the course
Welcome to Interactive Dashboards with Shiny
Overview of Shiny
Course Logistics
Basic Architecture of a Shiny App
Introduction to Shiny App Architecture
A Minimal Shiny App
Add a plot to our App
Server to UI
UI to Server
Add a control to our App
Using the widget gallery
Reactive Datasets
Basic Reactive concepts
Making a Reactive from a filter/Using Reactives
Some hints on using reactives
Reactive Graphs
Using plotly to add more interactions
Making a Plotly Object
Integrating Plotly with Shiny
Adding Tooltips to a Plotly Plot
Other kinds of plotly interactions
Layouts with Quarto
Introduction to Layouts
Types of Layouts
Introduction to Sidebar Layout
Plot Layout
Layouts Wrap Up
Wrapping Up
Deploying Your App
Course Review

Interactive Dashboards with Shiny

Course Logistics

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This lesson is called Course Logistics, part of the Interactive Dashboards with Shiny course. This lesson is called Course Logistics, part of the Interactive Dashboards with Shiny course.

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Your Turn

In RStudio, first install the following packages with:

install.packages("remotes")
install.packages("shiny")
install.packages("fivethirtyeight")
install.packages("plotly")
install.packages("usethis")

To download the course materials, you then run:

library(usethis) use_course("rfortherestofus/shiny-course")

It will ask you if you want to download the course into a specific folder. If you don’t like that folder, you can specify a different location using the destdir argument. For example, if I wanted to install it into my Code/ folder in /Users/tedladeras/:

usethis::use_course("rfortherestofus/shiny-course", destdir="/Users/tedladeras/Code/")

You’ll need to pick the option that means “yes” (the prompt is to make sure that you’re paying attention to the questions, the order is switched up every time.)

It will then ask you if you want to delete the Zip file. You don’t need this, so select the option that means “yes” again:

Now you should be ready for the course. Let’s do a quick check to make sure that we’re up and running:

library(shiny)
runApp("test_app")

If everything is successful, you should see a window open up:

Confirm the app works by moving the slider, and then close the window. You should be all set up for the course.

Opening the Project Later

There are two ways to reopen the project. The first is to open the project selector in the top right of the RStudio window. There you can select the project (it will have a slightly different name - the last part will be different):

The other is to open the shiny-course.Rproj file in your file explorer or finder:

Resetting the course

In case you accidentally delete things, you can download a new copy with course materials using use_course() again. It will download a fresh copy as a new project. The old project will remain, with a new id:

library(usethis) use_course("rfortherestofus/shiny-course")

Organization of the Course Materials

There are four folders corresponding to the four parts of the course. In order, these are:

basics/ reactives/ plotly/ quarto/

When you watch the “Your Turn” section of the videos, you’ll open the corresponding assignment number in the corresponding folder (it will make more sense when you start watching the videos).

Sometimes the assignments will be about adding code to an existing shiny app, or thinking through a particular question.

Hope you enjoy the course!

Learn More

If you prefer, you can also get the installation instructions on GitHub

Have any questions? Put them below and we will help you out!

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Corey Sparks

April 19, 2024

When I install the materials, I can load the project, but the runApp("test_app") returns an error: Error in shinyAppDir(): ! No Shiny application exists at the path "test_app"

If I manually open the app.R file in the test_app folder, the app that runs is not the geyser app, but one asking me to select a categorical variable