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;; Presented with just about as much Perl as the OP . . . (ns sumcols (:use [clojure.contrib.str-utils :only (re-split)]) (:use [ :only (read-lines)])) (defn sumline [acc line] (loop [a acc l (map #(Float. %) (re-split #"\s+" line)) idx 0] (if (empty? l) a (recur (assoc a idx (+ (get a idx 0) (first l))) (rest l) (inc i +dx))))) (defn sumcols [filename] (loop [acc {} lines (filter #(> (count %) 0) (read-lines filename))] (if (empty? lines) (vals acc) (recur (sumline acc (first lines)) (rest lines))))) (println (sumcols (first *command-line-args*)))

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re: adding array elements by Fletch
in thread adding array elements by Sidac

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    [LanX]: OH
    [LanX]: you are talking about signatures?
    [GotToBTru]: yes, it turns out I am
    [LanX]: http://perldoc. html#Prototypes
    [GotToBTru]: that page, strangely enough, never mentions that construct
    [LanX]: ; is for optional prototypes
    [LanX]: & is codeblock @ array
    [GotToBTru]: okay, that is there in the text, not in literal use in any of the examples
    [GotToBTru]: the text suggest it is redundant before @
    [LanX]: propably ... I also notice new stuff

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