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fffej/gist:149979

Created July 19, 2009 17:44
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gistfile1.clj
(defn histogram
[filename]
(reduce
(fn [accum x]
(let [h (Math/floor (/ x 10))]
(assoc accum h (inc (get accum h 0)))))
{}
(take-nth 2 (drop 1 (read-lines filename)))))
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