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
Exercise instructions
- Use a single verb to add a
proportion_mencolumn with the fractional male population and also keep thestate,county, andpopulationcolumns. - 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
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# Filter for population of at least 10,000
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# Arrange proportion of men in descending order
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