Great! Thanks so much for your help! On Monday, June 24, 2013 10:50:57 AM UTC-4, Gary Trakhman wrote: > > pst is printstacktrace, it's in the clojure.repl namespace and comes with > clojure. Sometimes lein or something makes it available automatically, > but if it isn't, you can (use 'clojure.repl) to get to it. > http://clojure.github.io/clojure/clojure.repl-api.html#clojure.repl/pst > > Yes, switching to mapv (map into a vector) instead of map (lazy-seqs) > prevents laziness from building up while keeping the same semantics. > > > On Mon, Jun 24, 2013 at 9:03 AM, P Martin <prof.pm...@gmail.com<javascript:> > > wrote: > >> Thanks a lot for tracing through my code! So, as I understand it, my >> loop/recur is correct, but I was not using map in a correct way within the >> vector functions. >> >> By the way, what is your (pst e*) line doing? Is that from a debugging >> library? I don't appear to have that in my clojure environment. >> >> Patrick >> >> >> On Friday, June 21, 2013 4:06:28 PM UTC-4, P Martin wrote: >>> >>> Hi, >>> >>> I am new to clojure and I am trying to reimplement some optimization >>> code that uses gradient descent. I have attached the source to this post. >>> My experience with gradient descent is in Matlab, which is procedural. >>> >>> When I run my function gradient-descent I supply step sizes and error >>> values of 0.01, it runs correctly and gives me good results. However, if I >>> decrease the error value below 0.001 it produces a stack overflow error. I >>> get the same error if my step value goes down to 0.001. >>> >>> Is my looping mechanism correct and I am just having numerical >>> limitations? Am I abusing loop/recur? Any suggestions/critiques would be >>> great! >>> >>> Thanks, >>> Patrick >>> >> -- >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clo...@googlegroups.com<javascript:> >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+u...@googlegroups.com <javascript:> >> 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+u...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > >
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