On Tuesday, April 13, 2010, Mark J. Reed <[email protected]> wrote:

> (defn mean [& rest] (/ (apply + reset) (count rest)))

that "reset" should be "rest".

> And then use the same trick with it in place of +:
> (apply map mean '((1 2 4) (2 4 6) (1 3 5)))

> which yields (4/3 3 5).

-- 
Mark J. Reed <[email protected]>

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