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Select helpers

In the video you learned about the select helper starts_with(). Another select helper is ends_with(), which finds the columns that end with a particular string.

This exercise is part of the course

Data Manipulation with dplyr

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Exercise instructions

  • Select the columns state, county, population, and all those that end with work.
  • Filter just for the counties where at least 50% of the population is engaged in public work.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

counties %>%
  # Select the state, county, population, and those ending with "work"
  ___
  # Filter for counties that have at least 50% of people engaged in public work
  ___
Edit and Run Code