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.
Latihan ini adalah bagian dari kursus
Data Manipulation with dplyr
Petunjuk latihan
- 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.
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
# Glimpse the counties table
___
counties %>%
# Select state, county, population, and industry-related columns
___
# Arrange service in descending order
___