data.table (version 1.10.0)

last: Last item of an object

Description

Returns the last item of a vector or list, or the last row of a data.frame or data.table.

Usage

last(x, ...)

Arguments

x

A vector, list, data.frame or data.table. Otherwise the S3 method of xts::last is deployed.

...

Not applicable for data.table::last. Any arguments here are passed through to xts::last.

Value

If no other arguments are supplied it depends on the type of x. The last item of a vector or list. The last row of a data.frame or data.table. Otherwise, whatever xts::last returns (if package xts has been loaded, otherwise a helpful error).If any argument is supplied in addition to x (such as n or keep in xts::last), regardless of x's type, then xts::last is called if xts has been loaded, otherwise a helpful error.

See Also

NROW, head, tail, first

Examples

last(1:5) # [1] 5
x = data.table(x=1:5, y=6:10)
last(x) # same as x[5]