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Ingy döt Net 2013-04-11 01:07:29 -07:00
parent b83f433714
commit 68f8f3e56b
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Task/Standard-deviation/Clojure/standard-deviation.clj Normal file
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@ -0,0 +1,9 @@
(defn std-dev [samples]
(let [n (count samples)
mean (/ (reduce + samples) n)
intermediate (map #(Math/pow (- %1 mean) 2) samples)]
(Math/sqrt
(/ (reduce + intermediate) n))))
(println (std-dev [2 4 4 4 5 5 7 9])) ;;2.0