Which of the following merges two variables into one ?
A. spread()
B. gather()
C. separate()
D. unite()
Answer:A
Which of the following merges two variables into one ?
A. spread() B. gather() C. separate() D. unite()
Explanation:The unite() function is a convenience function to paste together multiple variable values into one. 4. How many functions exist for wrangling the data with dplyr package ?