__________ is used when you have variables that form rows instead of columns.
A. tidy()
B. spread()
C. separate()
D. All of the mentioned
Answer:A
__________ is used when you have variables that form rows instead of columns.
A. tidy() B. spread() C. separate() D. All of the mentioned
Explanation:You need spread() less frequently than gather() or separate(). 2. Point out the correct statement :