Selecting columns
Using the select() verb, we can answer interesting questions about our dataset by focusing in on related groups of verbs. The colon (:) is useful for getting many columns at a time.
Bu egzersiz
Data Manipulation with dplyr
kursunun bir parçasıdırEgzersiz talimatları
- Use
glimpse()to examine all the variables in thecountiestable. - Select the columns for
state,county,population, and (using a colon) all five of those industry-related variables; there are five consecutive variables in the table related to the industry of people's work:professional,service,office,construction, andproduction. - Arrange the table in descending order of
serviceto find which counties have the highest rates of working in the service industry.
Uygulamalı interaktif egzersiz
Bu örnek kodu tamamlayarak bu egzersizi bitirin.
# Glimpse the counties table
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counties %>%
# Select state, county, population, and industry-related columns
___
# Arrange service in descending order
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