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.
Questo esercizio fa parte del corso
Data Manipulation with dplyr
Istruzioni dell'esercizio
- 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.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
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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