Exercise

Nuclear bombs per country

You've been given a version of the Nuclear Explosion DataBase (NEDB) where country names are specified in the column headers (nuke_df). You want to visualize how many nukes were detonated per year per country. You'll need to pivot the data and replace NA values first.

The ggplot2 package has been pre-loaded for you.

Nuclear explosion at Bikini

"A-Day" First atomic bomb explosion at Bikini in the Marshall Islands 1 July 1946.

Photo by Science in HD

Instructions 1/4

undefined XP
    1
    2
    3
    4
  • Pivot all columns except for year to a longer format.