Exercise

Adding a year column

The next step of data cleaning is manipulating your variables (columns) to make them more informative.

In this case, you have a session column that is hard to interpret intuitively. But since the UN started voting in 1946, and holds one session per year, you can get the year of a UN resolution by adding 1945 to the session number.

Instructions

100 XP

Use mutate() to add a year column by adding 1945 to the session column.