Exercise

Finding the levels of a factor

A data set called sportscar has been loaded for you. It describes choices between different sports cars that have four features:

the number of seats
the transmission type
whether it has a convertible roof
the price in thousands of dollars

Feel free to inspect the data frame using your favorite functions. When you are done, use summary() or levels() to find out what the levels for the seat variable are in this data set. The levels of the seat variable in sportscar are:

Instructions

50 XP

Possible answers

2, 3 and 4

2, 4 and 5

4, 5 and 7

5, 6 and 8

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Instructions

Possible answers

Exercise