Coding Assignment 2
Overview
The requirements for this assignment are very simple. You could create a Shiny app that incorporates at least one observer and one reactive function. An module is optional. The app can be an extension of the fredr line app that we did for this week, the V-Dem app we did for last week, or it can be a completely new app.
Step 1: Plan Your App (15%)
Before you start coding, write out a plan for your app. What variables will be on your X axis? What variables will be Y axis variables? What will the user interface look like? What will the server logic do? Etc. Write your plan in words in the space below (for your benefit).
Step 2: Wrangling (15%)
Start a new Shiny App. In the folder you created, start a new R script. Now use the dplyr package or other handy methods to wrangle the data into a format that is ready for plotting and write the CSV file to the folder. Remember that for this app the USER will be selecting which year to plot.
Step 3: Create the Setup Portion of the App (20%)
Load the packages that you will need for the app and create the variable lists that you will use in the UI. You will also need to load the data you created in the previous step.
Step 4: Create the User Interface (20%)
Create the user interface for the app. This should include the title, the X and Y axis variable selectors, and the viridis color scheme selector. You will also need to create a plot output.
Step 5: Create the Server Logic (20%)
Create the server logic for the app. This should include the reactive expression that will filter the data based on the user’s selections and the renderPlot() function that will create the plot. Make sure that your labels also change along with the updated data.
Step 6: Deploy Your App (10%)
Once you have it working, deploy your app to shinyapps.io. Share the link with the class. Then submit your folder to the Dropbox link listed below.
After you share your link with the class, please also submit your code to me via this link.