The general idea is that eduction is best when the result will be completely consumed in a reducible context. Any case of reusing the result will likely be better served by sequence which can cache and reuse the answer.
On Wednesday, April 1, 2015 at 3:51:53 AM UTC-5, Tassilo Horn wrote: > > vve...@gmail.com <javascript:> writes: > > > Eduction retains the ability to be recomposed with other transducers > > higher in the function chain. The following two are nearly equivalent: > > > > (transduce (take 1e2) + (eduction (filter odd?) (range))) > > (transduce (comp (filter odd?) (take 1e2)) + (range)) > > > > This will be slower: > > (transduce (take 1e2) + (sequence (filter odd?) (range))) > > > > Execution time mean : 19.054407 µs > > Execution time mean : 19.530890 µs > > Execution time mean : 39.955692 µs > > Interesting. But in my code experimentation has shown that sequence is > almost always faster in my use-cases which usually look like > > (sequence (comp (mapcat foo1) > (filter p1) > (map f1) > (mapcat foo2) > (filter p2) > (mapcat foo3) > (filter p3)) > coll) > > Here, I've switched between making the foo* functions return eductions > or lazy sequences, and the latter seems to alway be faster although that > looks like a use-case of eduction based on my assumptions... > > So maybe eduction can unfold its full potential only during transduce? > > Bye, > Tassilo > -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
