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.
Questo esercizio fa parte del corso
Data Manipulation with dplyr
Istruzioni dell'esercizio
- 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.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Glimpse the counties table
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counties %>%
# Select state, county, population, and industry-related columns
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# Arrange service in descending order
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