Test Your Skills on Data Wrangling
Test yourself on the concepts of data wrangling.
We'll cover the following...
We'll cover the following...
Multiple choice questions
1.
What’s another way of using the “not” operator ! to filter only the rows that aren’t going to Burlington, VT or Seattle, WA in the flights data frame?
A.
not_BTV_SEA <- flights %>% filter(!dest == "BTV" & !dest == "SEA")
B.
not_BTV_SEA <- flights %>%
filter(dest != "BTV" & dest != "SEA")
C.
Both A and B
D.
None of the above
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