| last {sfsmisc} | R Documentation |
Extract the last elements of a vector.
last(x, length.out = 1, na.rm = FALSE)
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. |
a vector of length abs(length.out) of last values from x.
This function may eventually be deprecated for the new (R 1.9.0)
function tail().
Useful for the turnogram() function in package
pastecs.
Werner Stahel (stahel@stat.math.ethz.ch), and independently, Philippe Grosjean (phgrosjean@sciviews.org), Frédéric Ibanez (ibanez@obs-vlfr.fr).
a <- c(NA, 1, 2, NA, 3, 4, NA) last(a) last(a, na.rm=TRUE) last(a, length = 2) last(a, length = -3)