On Nov 24, 2010, at 11:45 PM, Ken Wesson wrote: > On Wed, Nov 24, 2010 at 11:11 PM, Baishampayan Ghose <b.gh...@gmail.com> > wrote: >>> I just needed a function for every-nth element in a sequence.. I know it >>> can be trivially implemented as .. >>> (defn every-nth [n coll] >>> (letfn [(evn [cn s] >>> (when s >>> (if (= cn 1) >>> (lazy-seq (cons (first s) (evn n (next s)))) >>> (evn (dec cn) (next s)))))] >>> (evn n coll))) >>> But I remember seeing inbuilt function .. can anybody help me find it? >> >> take-nth should do the job - >> http://clojure.github.com/clojure/clojure.core-api.html#clojure.core/take-nth > > And it can be even more trivially implemented as (map first (partition > n coll)). :) >
(map first (partition 1 n coll)) > -- > 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 -- 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
