Re: Ridiculously massive slowdown when working with images

I'm running my JVM with: -verbose:gc -Xmn500M -Xms2000M -Xmx2000M -server sincerely, --Robert McIntyre On Fri, Jan 28, 2011 at 4:24 PM, Benny Tsai wrote: > Hi Robert, > > Just out of curiosity, are you running Clojure with the -server > option?  When I run David's code,

Re: How to disallow unlisted optional argument keys?

you could do something like this, but I'm curious --- why do you want to restrict the function's inputs in this way? (defn hello [& {:keys [a b] :as input}] (assert (= (set (keys input)) #{:a :b})) "hello") sincerely, --Robert McIntyre On Sat, Jan 29, 2011 at 1:19 P

Re: How to disallow unlisted optional argument keys?

nput}] (dorun (map #(eval `(assert (#{:a :b} (quote ~% (keys input))) "hello") I'd be curious what the right way to to this is. sincerely, --Robert McIntyre On Sat, Jan 29, 2011 at 4:15 PM, Shantanu Kumar wrote: > > On Jan 30, 1:26 am, Robert McIntyr

Re: Ridiculously massive slowdown when working with images

That's excellent. Thank you everyone. Maybe someone could compile all these "let's speed up this clojure code" threads and put it somewhere as a valuable resource we could point to when things like this come up again? sincerely, --Robert McIntyre On Sun, Jan 30, 2011 at

Re: How to disallow unlisted optional argument keys?

You win sir. That is the most beautiful way. sincerely, --Robert McIntyre On Sun, Jan 30, 2011 at 7:59 PM, Bill James wrote: > Alexander Yakushev wrote: >> Why not use a constraint? It looks much cleaner. >> >> (defn hello [& {:keys [a b] :as input}] >>    

Re: Transpose

That's a good one, on par with the one line low-pass filter: ;; filter noise ;;(http://clojure-log.n01se.net/date/2009-10-13.html by ambient ;;this is such a cool transform!!! (defn lo-pass [d coll] (reductions #(+ (* %2 d) (* %1 (- 1.0 d))) coll)) sincerely, --Robert McIntyre O

question about gen-class

ll) I get a null pointer error. How can I make a null safe function with gen-class? sincerely, --Robert McIntyre -- 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

Re: Matrix transform

Could you possibly put up a minimal example of code that shows the problem? I'm having a hard time following exactly what you're doing but would like to help. :) sincerely, --Robert McIntyre On Fri, Feb 4, 2011 at 10:20 AM, Nick wrote: > I've got a matrix transformation th

Re: Get digits of a number

I normally use (defn digits [n] (map #(Integer/parseInt (str %)) (seq (str n You can adapt it to read in different bases easily. sincerely, --Robert McIntyre On Thu, Feb 17, 2011 at 9:45 PM, Matthew Boston wrote: > How about using the Java api Character/getNumbericValue, like

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