[R] how to count number of elements in a vector that are not NA ?

[Godmar Back]

Hi,

is there a simpler way to count the number of elements in a vector
that are not NA than this:

countN <- function (v) {
    return (Reduce(function (x, y) x + y, ifelse(is.na(v), 0, 1)))
}

?

 - Godmar