sum(!is.na(x))
> Date: Tue, 07 Jul 2009 14:56:54 -0400
> From: Godmar Back <god...@gmail.com>
> Sender: r-help-boun...@r-project.org
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>
> 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
>
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