How to get ranks with no gaps when there are ties among values?

Question

When there are ties in the original data, is there a way to create a ranking without gaps in the ranks (consecutive, integer rank values)? Suppose:

x <-           


        

Answer 1

If you don't mind leaving base-R:

library(data.table)
frank(x, ties.method = "dense")
[1] 2 2 2 1 1 3 3

data:

x <-  c(10, 10, 10, 5, 5, 20, 20)