I implemented a scan function, that is a function like reduce but that
returns a list of the intermediate results not just the last one.
(defn scan
([f coll]
(scan f (first coll) (rest coll)))
([f val coll]
(when (not (empty? coll))
(let [new-val (f val (first coll))]
(lazy-seq
(cons new-val
(scan f new-val (rest coll))))))))
Is this best way to implement that or is there already a Clojure
function that does this that I've missed?
Thanks,
Jim
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