Transposition is commonly done by applying map over the outer collection: user=> (vec (apply map vector [[:00 :01][:10 :11]])) [[:00 :10] [:01 :11]]
On Jun 6, 5:54 am, Eugen Dück <eu...@dueck.org> wrote: > P.S. The transpose fn is one of the cases where I'd like to have a > more general interleave fn, as lobbied for > here:http://groups.google.com/group/clojure/t/c0366933a4333b69 > > Because with the current version of interleave: > > user=> (transpose [[1 2]]) > java.lang.IllegalArgumentException: Wrong number of args passed to: > core$interleave (NO_SOURCE_FILE:0) > > On Jun 6, 9:51 pm, Eugen Dück <eu...@dueck.org> wrote: > > > > > Suppose I have two collections: > > > (def x [1 2]) > > (def y [[\a \b] [\d \e] [\f \g]]) > > > And want to iterate over them in the following manner: > > > user=> (map list x (transpose y)) > > ((1 (\a \d \f)) > > (2 (\b \e \g))) > > > Where this is the transpose fn: > > > (defn transpose > > [in] > > (partition (count in) (apply interleave in))) > > > Is there any other nice way to do this without relying on some home- > > grown fn? > > > Cheers > > Eugen -- 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
