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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

This exercise is part of the course

Reshaping Data with tidyr

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Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

nuke_df %>% 
  # Pivot the data to a longer format
  ___
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