rank {base}R Documentation

Sample Ranks

Description

rank returns the sample ranks of the values in x. Ties result in ranks being averaged. NA values are not allowed in this function.

Usage

rank(x, na.last = TRUE)

Arguments

x a numeric vector.
na.last for controlling the treatment of NAs. Currently, TRUE is the only possible value.

See Also

order and sort.

Examples

(r1 <- rank(x1 <- c(3,1,4,59,26)))
(r2 <- rank(x2 <- c(3,1,4,5,9,2,6,5,3,5))) # ties

## rank() is "idempotent": rank(rank(x)) == rank(x) :
stopifnot(rank(r1) == r1, rank(r2) == r2)