at least, it often feels like that is the practical reality cf.
clojure vs. java; f# vs. c#; haskell vs. c -- oh, wait a minute:
http://www.cs.ru.nl/P.Achten/IFL2013/symposium_proceedings_IFL2013/ifl2013_submission_20.pdf
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Ah, I see. Well, I think then you can ignore the stuff about warming
up, as this certainly takes a while to run here:
"Elapsed time: 314763.93 msecs"
I tried profiling with Yourkit and saw a couple of things to change:
;; I think lte with more than two args ends up being slower than
unrolli
Hi Steven,
My bad. You need to invoke the code using the command
lein run -m rdp.214-intermediate-arr 1 true
The `1` tells it to select a certain input file, (in this case the biggest)
and the `true` tells it to use the function that internally uses a java
array (as opposed to the function th
Hi Amith,
I checked out your project from git and just doing 'lein run' I got a
reported:
"Elapsed time: 185.651689 msecs"
However, if I modify the -main function in 214_intermediate.clj to wrap the
time testing with (doseq [_ (range 20)]), to run the test multiple times,
the behavior is much
No, it actually compiles down to a pile of ifs, and try/catch/throws (for
backtracking). It's pretty fast, but it won't be as fast as a jump table
for complex matches, that's for sure.
Timothy
On Fri, May 15, 2015 at 5:53 PM, Surgo wrote:
> core.match compiles down to case, does it not? So the
core.match compiles down to case, does it not? So the comparisons here are
similar: http://insideclojure.org/2015/04/27/poly-perf/
-- Morgon
On Friday, May 15, 2015 at 2:57:23 PM UTC-4, tbc++ wrote:
>
> One big thing to consider is that core.match is closed dispatch. If you
> write a function t
I regroup these name spaces in an api name space and require this name space
where it makes sense.
You can cut out your APIs as you wish around one or more mutli methods and add
whatever stuff needs to be part of it.
Still manually managed but not scattered everywhere. Never thought of a
differ
Fantastic to see this Jony!
I look forward to checking it out in detail.
Those interested in genetic programming in Clojure might also want to check out:
- https://github.com/lspector/gp (minimalist tree-based genetic programming
implementation, written for educational purposes but maybe useful
Hi All,
it's my pleasure to share with you two libraries: darwin and algebolic.
Algebolic is a library for evolving mathematical expressions. You can use
it to perform what's known as symbolic regression, where a symbolic
mathematical expression is found that fits a given dataset. More general
Thanks for the feedback guys. Another related Q: The user needs to require
the namespace that those defmethods are defined in for the multi to know
about it. Presumably each defmethods will be in individual files, meaning
the user has to require all those files for the migration tool to work. Is
One big thing to consider is that core.match is closed dispatch. If you
write a function that uses core.match, I can't extend it inside my code.
This is something that is possible with both multi-methods and protocols.
Timothy
On Fri, May 15, 2015 at 12:49 PM, Sam Raker wrote:
> The discussion/
The discussion/post-linked-to
in https://groups.google.com/d/msg/clojure/eoAp6QVimYI/iipmEJNKdrIJ have
got me thinking about protocols & multimethods, which I admittedly have
possibly never actually used, now that I think about it. I'm wondering how
they differ from core.match[1]. I realize pro
Thanks to both of you, this looks more like what I am used to with clojure.
The transpose function is the trick here :-)
Best Regards,
Sven
Am Freitag, 15. Mai 2015 10:35:11 UTC+2 schrieb Ray Miller:
>
> If I've understood the problem correctly, you can simplify the code by
> implementing a tra
Thanks Jony -- very helpful!
-Lee
> On May 15, 2015, at 7:52 AM, Jony Hudson wrote:
>
> @puzzler -server is the default mostly, but Leiningen overrides some of the
> important options that -server enables, as detailed by Alex.
>
> @Lee the first 15 minutes of this talk by Tom Crayford has so
@puzzler -server is the default mostly, but Leiningen overrides some of the
important options that -server enables, as detailed by Alex.
@Lee the first 15 minutes of this talk by Tom Crayford has some useful info
about performance and JVM options in it:
https://skillsmatter.com/skillscasts/6148
If I've understood the problem correctly, you can simplify the code by
implementing a transpose function:
(defn transpose [xs] (apply map vector xs))
Then define a wanted? function for filtering the lines you want to include:
(defn wanted? [xs] (some zero? xs))
...and a helper function to left-
Sven Richter writes:
> HI,
>
> I just posted a question to stackoverflows code review
> page:http://codereview.stackexchange.com/questions/90809/remove-lines-from-a-2d-vec-in-clojure
>
> As there is not much traffic regarding clojure I also double post to this
> list in the hope to get some goo
HI,
I just posted a question to stackoverflows code review
page:http://codereview.stackexchange.com/questions/90809/remove-lines-from-a-2d-vec-in-clojure
As there is not much traffic regarding clojure I also double post to this
list in the hope to get some good answers. You might respond here o
I can suggest https://github.com/teropa/lein-flyway, which wraps the
functionality of flyway into leiningen commands.
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Thanks for the detailed suggestions. Implementing them did bring the
execution time down to around 250secs. Though that value is still much
longer than 45secs. Could you please verify if I have implemented them
correctly?
Code -
https://github.com/amithgeorge/reddit-dailyprogrammer-clojure/blo
Why not trying it right away in the REPL?
user=> (defrecord Bar [state]) ; <- not implementing IFn
> user.Bar
> user=> ((->Bar "foo"))
> ClassCastException user.Bar cannot be cast to clojure.lang.IFn
> user/eval15532 (form-init5689008917050406381.clj:1)
> user=> (defrecord Foo [state] clojure
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