JedR Trials

Congratulations! You have recently been hired as a JedR Padawan for the Galactic News Hub, the premiere news organization for the Star Wars Universe.

Your editor, droid J-327D, will ask you to explore the Star Wars Universe to find facts to include in stories for the News Hub. (You’re probably thinking this should work the other way around: that the Human should be asking the Droid for data facts. Perhaps that will come true once you pass all the Trials and become a JedR Knight!)

The JedR Trials are designed to test your R skills through a series of interactive exercises. Each Trial introduces different journalism-centric data science techniques, using exercises based on the starwars dataset.

Each Trial might have more than one part, and it is best to complete them in order. That said, you are always welcome to go back to an earlier Trial to give yourself a review.

  • Introduction: The data: Introduces the starwars data and the interactive format of the lessons. Covers some basic functions to look at data.
  • Summarize with Count: Covers counting rows using group_by() and summarize(). (We skip count() here to focus on group_by, summarize and arrange.)
  • Summarize with Math: Covers grouping data and math functions within summarize.
  • Plotting: Making a very basic ggplot chart.
  • Pivoting: Making data wider and longer.
  • Bind and Join: Combining data.