Exercise

Examine the variables in the data set

For the following exercises we are using the nasa_fireball data, a data set of reported fireball events. Explore the variables in this data set. The nasa_fireball data frame is already loaded.

Instructions

100 XP

Print the nasa_fireball data frame.
Examine the types of variables present by sapply()-ing class().
Observe the number of observations in this data frame using nrow().
Check which columns, if any, contain missing data by sapply()-ing anyNA().