I have been following along with Hadley Wickham's R for data science book. He has a lot of advice on using lubridate, but a lot of the functions assume that you have year, month, and day. How do you convert to date format when all you have is year and week using lubridate?
data.frame(
year = c(2015, 2015, 2016, 2016, 2016, 2016, 2016),
week = c(1, 20, 35, 49, 8, 4, 53)
)
#year week
#2015 1
#2015 20
#2016 35
#2016 49
#2016 8
#2016 4
#2016 53