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  3. Foundations of Functional Programming with purrr
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연습 문제

purrr and scatterplots

Since ggplot() does not accept lists as an input, it can be paired up with purrr to go from a list to a data frame to a ggplot() graph in just a few lines of code.

You will continue to work with the gh_users data for this exercise. You will use a map_*() function to pull out a few of the named elements and transform them into the correct datatype. Then create a scatterplot that compares the user's number of followers to the user's number of public repositories.

지침

100 XP
  • map() over gh_users, use the map_*() function that creates a data frame, with four columns, named "login", "name", "followers" and "public_repos".
  • Pipe that data frame into a scatterplot, where the x axis is followers and y is public_repos.