last {data.table} | R Documentation |
Returns the last item of a vector or list, or the last row of a data.frame or data.table.
last(x, ...)
x |
A vector, list, data.frame or data.table. Otherwise the S3 method of
|
... |
Not applicable for |
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.
last(1:5) # [1] 5 x = data.table(x=1:5, y=6:10) last(x) # same as x[5]