R: su: Sorted unique values

su	R Documentation

su: Sorted unique values

Extract unique elements and sort them

su(x = NULL, na.last = TRUE, decreasing = FALSE)

`x`	a vector or a data frame or an array or NULL.
`na.last`	an argument to be passed onto the 'sort' function (in base R) for controlling the treatment of NA values. If `na.last = TRUE`, NA values in the data are put last; if `na.last = FALSE`, NA values are put first; if `na.last = NA`, NA values are removed. By default, `na.last = TRUE`
`decreasing`	logical. Should the sort be increasing or decreasing? An argument to be passed onto the 'sort' function (in base R). By default, `decreasing = FALSE`

a vector, data frame, or array-like 'x' but with duplicate elements/rows removed.

su(c(10, 3, 7, 10, NA))
su(c("b", "z", "b", "a", NA, NA, NA))