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.
Deze oefening maakt deel uit van de cursus
Data Manipulation with dplyr
Oefeninstructies
- 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.
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
# 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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