Inner join with the data.table syntax
In the last exercise, you right joined population to capitals. The result contained all rows from population and had some NAs. In this exercise, you will perform an inner join instead, retaining rows only from both the tables.
This exercise is part of the course
Joining Data with data.table in R
Exercise instructions
Inner join population to capitals using the data.table syntax.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Inner join with the data.table syntax
___[population, ___, ___]