Eliminate duplicates in R [duplicate]

Question

If I have a df like this

data<-data.frame(id=c(1,1,3,4),n=c("x","y","e","w"))
data
  id n
1  1 x
2  1 y
3  3 e
4  4 w

I want to get a new df like this:

data
  id n
3  3 e
4  4 w

That is, I want it to remove all repeating rows. I've tried functions like distinct from dplyr but it always gets one of the repeating rows.

Answer 1

Another subset option with ave

subset(
    data,
    ave(n, id, FUN = length) == 1
)

gives

  id n
3  3 e
4  4 w