sfsmisc (version 1.1-17)

last: Get Last Elements of a Vector

Description

Extract the last elements of a vector.

Usage

last(x, length.out = 1, na.rm = FALSE)

Value

a vector of length abs(length.out) of last values from x.

Arguments

x

any vector.

length.out

integer indicating how many element are desired. If positive, return the length.out last elements of x; if negative, the last length.out elements are dropped.

na.rm

logical indicating if the last non-missing value (if any) shall be returned. By default (it is FALSE and) the last elements (whatever its values) are returned.

Author

Werner Stahel (), and independently, Philippe Grosjean (), Frédéric Ibanez ().

See Also

first, turnogram

Examples

a <- c(NA, 1, 2, NA, 3, 4, NA)
last(a)
last(a, na.rm=TRUE)

last(a, length = 2)
last(a, length = -3)