Open llrs opened 8 months ago
Add a function that when merging data will tell which variables make the join to expand.
Aka:
a <- data.frame(a = 1:3, b = 2:4) b <- data.frame(a = 1:5, b = 3) ab <- merge(a, b, all = TRUE)
That it can explain why merge output ab is now 7 rows long: Which variables caused this on which rows of each?
Add a function that when merging data will tell which variables make the join to expand.
Aka:
That it can explain why merge output ab is now 7 rows long: Which variables caused this on which rows of each?