On Sep 2, 7:02 pm, tmountain <tinymount...@gmail.com> wrote:
> (defn generate-chain [source]
> (loop [the-list (map #(list (first (split-at 2 %)) (last %))
> (partition 3 1 (.split (.replace source "\n" "
> ") " ")))
> res (hash-map)]
> (if (empty? the-list)
> res
> (recur (filter #(not= (first (first the-list))
> (first %)) the-list)
> (assoc res (first (first the-list))
> (map #(last %)
> (filter #(= (first (first the-list))
> (first %)) the-list)))))))
>
> (println (generate-chain (slurp "big-file.txt")))
I having a bit of a hard time decoding what this function does. I get
that it is producing a Markov chain from a description in a file. Can
you describe the format of the file, and how you are representing the
output (i.e. the chain - is it a map representing the state-transition
matrix)? An example input/output would be fine.
However, I suspect you can solve this by using lazy-seq and perhaps
preprocessing "the-list" into a more efficient data structure.
/Karl
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