Analyzing matrices, you shall
It is now time to get your hands dirty. In the following exercises you will analyze the box office numbers of the Star Wars franchise. May the force be with you!
As a reminder, have a look at this line of code, that constructs a matrix with the number 1 up to 9, filled row by row:
matrix(1:9, byrow = TRUE, nrow = 3)
In the editor on the right, a vector box is defined that represents the box office numbers from the first three Star Wars movies. The first, third and fifth element correspond to the US box office revenue for the movies, the second, fourth and sixth element represent the non-US box office revenue.
This exercise is part of the course
Introduction to R for Data Science (Microsoft)
Exercise instructions
Construct a matrix with one row for each movie. The first column is for the US box office revenue, and the second column for the non-US box office revenue. Name the matrix star_wars_matrix.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Star Wars box office in millions (!)
box <- c(460.998, 314.4, 290.475, 247.900, 309.306, 165.8)
# Create star_wars_matrix