try the following: (defn avg-coll [coll] (/ (reduce + coll) (count coll)))
then use it on your collection of collections: (map #(avg-coll %) (list (list 1 2 3) (list 6 4 2))) this will give you (2 4) hope this helps. On Apr 12, 10:48 pm, Glen Rubin <rubing...@gmail.com> wrote: > I am working with a collection of integer sequences ...(e.g. > coll: > ((3 7 3 5 9 2 0 8 4 0 1 2323 4 11...) (243 4 664 478 3948...) (6 3 7 4 > 3335 2 4 5 7 6...)...) > > I want to create an average sequence such that all of the first > elements are averaged, all of the second elements, etc.... > > However, I am unable to manipulate the collection. If I try something > simple like: > > (map + coll) > > I get java.lang.ClassCastException > > I understand that this is because map is trying to apply + to an > entire sequence, but cannot figure out how to remove the parenthesis > which enclose this collection. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en To unsubscribe, reply using "remove me" as the subject.
