BaşlayınÜcretsiz Başlayın

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.

Bu egzersiz

Data Manipulation with dplyr

kursunun bir parçasıdır
Kursu Görüntüle

Egzersiz talimatları

  • 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.

Uygulamalı interaktif egzersiz

Bu örnek kodu tamamlayarak bu egzersizi bitirin.

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