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Mutate, filter, and arrange

In this exercise, you'll put together everything you've learned in this chapter (select(), mutate(), filter() and arrange()), to find the counties with the highest proportion of men.

This exercise is part of the course

Data Manipulation with dplyr

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Exercise instructions

  • Use a single verb to add a proportion_men column with the fractional male population and also keep the state, county, and population columns.
  • Filter for counties with a population of at least ten thousand (10000).
  • Arrange counties in descending order of their proportion of men.

Hands-on interactive exercise

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

counties %>%
  # Keep state, county and add proportion_men
  ___
  # Filter for population of at least 10,000
  ___
  # Arrange proportion of men in descending order 
  ___
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