On Mon, Aug 23, 2010 at 07:04, ataggart alex.tagg...@gmail.com wrote:
Yes, you can easily work offline. Simply recursively wget the entire
maven repo from http://repo1.maven.org/maven2/
It may take a while.
Whatever you do, please DO NOT DO THAT!
e.g.
Memoization is implemented at language-leve. The function is called memoize.
(It's a three-liner or so)
On Sun, Aug 22, 2010 at 11:45 PM, Sreeraj a writeto...@gmail.com wrote:
What about automatic memoization?
Does clojure already implement memoization?
is adding auto memoization to the
On 22 Aug 2010, at 17:48, Belun wrote:
does clojure take advantage of my multicore processor ? if i write a
program (not using multiple threads) that is going to take 1 day in a
java environment, then will my program run 4 times faster on my 4 core
processor if i build it in clojure ?
No. No
I think he talkes about automatic detection where memoization would be
good for performence. I don't think it is done ATM but I would surly
be a intressting topic.
The Clojure compiler is still in Java. I think befor someone does a
big project with the compiler it should be translated to clojure.
Let's say my group has a fairly large java project on which ~20 people
are working.
We want to start using clojure with our existing code.
Specifically, we want to have clojure classes that provide functions
for our java classes, and vice versa.
Two questions on the best way to do this:
(:1
Some examples to illustrate this would be very welcome.
On Aug 22, 2010, at 9:17 AM, Nicolas Oury nicolas.o...@gmail.com wrote:
On Sun, Aug 22, 2010 at 11:30 AM, Belun alexandrurep...@gmail.com wrote:
why does everything have to be a data structure ? like (operation
parameter parameter ...)
I have a simulation program that runs a Number of random Simulations
and then Averages them. It basically looks like this:
(reduce Average (repeatedly Number Simulate))
What is the best way of making this parallel? I noticed there was no
parallel version of repeatedly. I suppose I could
oh yes -- please don't do it manually for anything production
But, it's good to know what's actually going on behind the scenes,
especially when things stop working :)
--Robert McIntyre
On Sun, Aug 22, 2010 at 7:05 PM, Wilson MacGyver wmacgy...@gmail.com wrote:
On Sun, Aug 22, 2010 at 2:39 PM,
On Mon, Aug 23, 2010 at 3:45 AM, Victor Olteanu bluestar...@gmail.com wrote:
Some examples to illustrate this would be very welcome.
Any macro is an example of that.
For example, from clojure/core.clj
(defmacro -
Threads the expr through the forms. Inserts x as the
second item in the first
Hi,
On 23 Aug., 14:03, Nicolas Oury nicolas.o...@gmail.com wrote:
If the AST of LISP were more complicated, this kind of program would
be more complicated.
eg. see OCaml's camlp4. I found it complicated compared to Lisp style
macros.
Sincerely
Meikel
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And it's usage is far less generalised than macros in LISP.
It is not an usual solution to write acamlp4 preprocessor.
On Mon, Aug 23, 2010 at 1:06 PM, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
On 23 Aug., 14:03, Nicolas Oury nicolas.o...@gmail.com wrote:
If the AST of LISP were more
On 23.08.2010, at 04:45, nchubrich wrote:
I have a simulation program that runs a Number of random Simulations
and then Averages them. It basically looks like this:
(reduce Average (repeatedly Number Simulate))
I guess that Simulate is a function and that Average calls functions and
This seemed to be in clojure.parallel, but parallel is deprecated. Why is
it deprecated,
and what's the replacement for it?
I'd like to know that as well!
I am not sure, so don't believe this blindly.
I think it is due to changes in the plan for Java 7 and JSR266y.
Some of the dependency
Hi,
maybe work is of interest to you:
http://measuringmeasures.com/blog/2010/8/16/clojure-workers-and-large-scale-http-fetching.html
Sincerely
Meikel
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Hi:
I'm using Ubuntu and emacs 23 with elpa to manage clojure-mode, paren-
edit, slime, slime-repl and swank-clojure. ELPA doesn't like list
swank-clojure 1.2 yet. Can I upgrade manually?
It looks like ~/.swank-clojure contains the clojure and clojure
contrib jar files. But this directory is
It's because slime-compile-file (C-c M-k) doesn't do anything unless the
optional load parameter is true, and when you run the function from the
keyboard shortcut, it doesn't get set. C-c C-k ends up calling that function
with load=true. The distinction between to the two is false in Clojure
hi sam,
thanks for the demo.
looks like there's mounting interest in javafx and clojure.
good to know. see this thread:
http://groups.google.com/group/clojure/browse_thread/thread/35aabe2fa9302aff#
i'm hard at work and should release shortly.
_c
On Aug 21, 8:43 pm, Sam Griffith
I started using the scenario scenegraph library from JavaFX to create
GUI elements in project Overtone, but it seems development has stopped
on the project (at least in the public repository) and we are weary of
becoming dependent on a dead or closed source library. It's really
too bad, because
(:1 Should the clojure source files intermingle with the java source files,
each according to it's relavance to the problem, or should there be a top
level separation between them?)
IMO, they should be separated. Since the project was started with Java
I'd continue treating it as the
Oops,
s/create an instead/create an instance/
:)
On Mon, Aug 23, 2010 at 10:03 AM, Allen Johnson akjohnso...@gmail.com wrote:
(:1 Should the clojure source files intermingle with the java source files,
each according to it's relavance to the problem, or should there be a top
level separation
Hi Shawn.
This kind of thing always bothers me. It makes me a bit unsure wether the
installation was done correctly; hence the question. But I'll regard that
menu entry as not existent then anyway from now on.
Thanks!
Arie
2010/8/23 Shawn Hoover shawn.hoo...@gmail.com
It's because
On Aug 22, 4:28 pm, Robert McIntyre r...@mit.edu wrote:
oh yes -- please don't do it manually for anything production
But, it's good to know what's actually going on behind the scenes,
especially when things stop working :)
For my simple needs -
java -cp .:clojure.jar
It looks like regular expressions are the only type with built-in
syntax that don't have a predicate function. How about:
(def
^{:arglists '([x])
:doc Return true if x is a regular expression
(java.util.regex.Pattern)
:added 1.3}
re? (fn re? [x] (instance? java.util.regex.Pattern x)))
The elisp side of swank-clojure is deprecated. You just need clojure-mode
and slime-repl on the Emacs side. Then launch a swank server with your build
tool. See the swank-clojure readme.
On Aug 23, 2010 6:21 AM, Rising_Phorce josh.fe...@gmail.com wrote:
Hi:
I'm using Ubuntu and emacs 23 with
Why use def? You could just place re? after the definition of defn,
and write it:
(defn re?
Return true if x is a regular expression
{:added 1.3}
[x]
(instance? java.util.regex.Pattern x))
- James
On 23 August 2010 16:17, Jeff Rose ros...@gmail.com wrote:
It looks like regular
I am trying to write a fn to correlate 2 signals using 3 nested map
fn. I have 2 collections of data. THe first group of signals called
target looks something like this.
target:
( (1,2,3,4) (2,3,4,5) ...)
The second collection is called signal and looks like this:
signal:
(
On Mon, 23 Aug 2010 17:26:44 +0200, Glen Rubin rubing...@gmail.com wrote:
I am trying to write a fn to correlate 2 signals using 3 nested map
fn. I have 2 collections of data. THe first group of signals called
target looks something like this.
target:
( (1,2,3,4) (2,3,4,5) ...)
The second
This is fascinating—I too am interested in Clojure-JavaFX interaction.
Thanks a lot for putting this up!
On Aug 21, 8:43 pm, Sam Griffith stayp...@mac.com wrote:
Hello group,
I'd replied a long time ago to one of the posts about JavaFX and
Clojure working together... I've now finally gotten
On Mon, Aug 23, 2010 at 8:31 AM, Luka Stojanovic li...@magrathea.rs wrote:
It's not about nested maps, but about nested anonymous functions: if you
nest anonimous functions you must use (fn [] ...) like:
(map (fn [t s] (map #(map * %1 %2) t s)) target signal)
This has me question, how useful
Ah, so this is the context for your previous thread about multiplying
lists. Re-using some of the code from that thread:
(def target [[1 2 3 4] [2 3 4 5]])
(def signal [[[1 2 3 4] [2 3 4 5] [3 4 5 6]] [[2 3 4 5] [3 4 5 6] [4 5
6 7]]])
(defn correlate [target signal]
(let [mult-lists (fn [x
uses like #(first %) keeps the code cleaner
on the other hand, for more complicated things I would really not
recommend the short form
2010/8/23 gary ng garyng2...@gmail.com:
On Mon, Aug 23, 2010 at 8:31 AM, Luka Stojanovic li...@magrathea.rs wrote:
It's not about nested maps, but about nested
On Mon, Aug 23, 2010 at 8:50 AM, Joop Kiefte iko...@gmail.com wrote:
uses like #(first %) keeps the code cleaner
Is that the same as just 'first' like :
(map first [[1 2] [3 4]])
(map #(first %) [[1 2] [3 4]))
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bad example =/
Yes, it is
but you get the gist I hope
better example: #(first (sort %)) ;)
2010/8/23 gary ng garyng2...@gmail.com:
On Mon, Aug 23, 2010 at 8:50 AM, Joop Kiefte iko...@gmail.com wrote:
uses like #(first %) keeps the code cleaner
Is that the same as just 'first' like :
(map
Sure, I was just copying the style of the existing predicate functions
in core.clj to keep it consistent.
-Jeff
On Aug 23, 5:25 pm, James Reeves jree...@weavejester.com wrote:
Why use def? You could just place re? after the definition of defn,
and write it:
(defn re?
Return true if x is a
Be very careful when copying the style of clojure.core. There are a
lot of non-standard practices in there, because Rich is bootstrapping
the language. For example, defn doesn't work like we're all used to
in core until about 80% of the way through.
Follow these style guidelines instead:
Now Clojure 1.2 has been released, Clojure programs will be included
in the Computer Language Benchmarks Game.
If you'd like to contribute Clojure programs, please follow the step-
by-step
http://shootout.alioth.debian.org/help.php#contribute
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Rather than
creating the JavaFX language they would have done so much more for the
community to just focus on this scenegraph library, animation, etc...
I agree. I'm not interested in the JavaFX language, but am interested
in doing Flash-like user interfaces and animations from Clojure.
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On 20 Aug 2010, at 16:22, Stuart Sierra wrote:
*** For clojure-contrib developers:
Each library has its own directory under the modules directory at
the top level of clojure-contrib. Each module directory contains a
pom.xml file specifying the name, version number, and dependencies of
that
On Aug 22, 2:39 am, Legilimens bort...@gmail.com wrote:
Would people be interested in a patch that replaces all of the older
static calls using . to the newer method using / ?
I personally don't mind the leftovers of old syntax in core. However,
the question of why is it being used comes up
On Aug 23, 2:51 pm, Konrad Hinsen konrad.hin...@fastmail.net wrote:
Or is there any simple way to make a jar containing only the source code
files?
Ys, the maven assembly plugin can do this. Ill work on it when I get
back later this week.
-S
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Again with the bad examples but...
(map #(even? %) coll) is faster than
(map (partial even?) coll)
So it's at least got that going for it.
(I know this SHOULD be written as (map even? coll))
On Aug 23, 1:59 pm, Michael Gardner gardne...@gmail.com wrote:
On Aug 23, 2010, at 11:13 AM, Luka
Hey all, I had an itch this weekend... so I scratched it.
I was doing some bit twiddling stuff and needed the Java operator.
I had written some workarounds but they were overly-complicated and
slower than I would have hoped, so I dug directly into core and added
it as a first class citizen next
Without commenting on the usefulness of this (it doesn't really
interest me), there are a couple style things I would change.
First, :added ought to be 1.3 (maybe 1.2?), not 1.0. Second, the
newsgroup seems to think that if you're changing clojure.core you
might as well update from (. staticMember
Really? I would be interested to hear why; is it maybe because partial
has to take any number of arguments and then (apply even? args)?
I've taken to using partial when I can, precisely because of the
difficulty of nesting anonymous functions, and while performance isn't
a big deal for me I'm
Yes the 1.0 was a slip on my part, and I agree that I should have used
the class/staticMembers syntax; at the time I was simply trying to fit
in.
Regardless, here is the updated patch with those two comments fixed:
The difference is not HUGE, but in a critical section it might be a
valid micro-optimization. I'd also be interested to know why, but I
bet you're assumption of apply being thrown in the mix is probably
pretty close to true.
user= (time (dotimes [_ 1e6] (doall (map #(filter even? %) (for [i
I thought that much of the driver behind protocols and records were to
support the Clojure-in-Clojure effort.
Can anyone confirm?
Thanks,
Daniel
On Aug 23, 3:59 am, nickikt nick...@gmail.com wrote:
I think he talkes about automatic detection where memoization would be
good for performence. I
Well, #(= lo % hi) is to my mind much more readable than (fn [x] (=
lo x hi)), especially embedded in another form or two (as it would
be).
On Aug 23, 11:48 am, gary ng garyng2...@gmail.com wrote:
On Mon, Aug 23, 2010 at 8:31 AM, Luka Stojanovic li...@magrathea.rs wrote:
It's not about nested
Transforming the data after it comes out of the parser can be
cumbersome with complex data structures though, it would be nice to
have a way for the parser to return the data in the desired format.
I updated clojure.contrib.json with the ability to add custom
deserializers:
(def *deserializers*
On Mon, Aug 23, 2010 at 8:26 AM, Glen Rubin rubing...@gmail.com wrote:
I am trying to write a fn to correlate 2 signals using 3 nested map
fn. I have 2 collections of data. THe first group of signals called
target looks something like this.
target:
( (1,2,3,4) (2,3,4,5) ...)
The second
On Mon, Aug 23, 2010 at 5:41 PM, Randy Hudson randy_hud...@mac.com wrote:
Well, #(= lo % hi) is to my mind much more readable than (fn [x] (=
lo x hi)), especially embedded in another form or two (as it would
be).
that may be true. though this IMO is partly due to the (=)
construct's argument
There may be some value in the intellectual exercise to try something like your
solution, but I think this is far more tractable if you use meaningful variable
names:
(map (fn [group scalars] (map (fn [trial] (map (fn [signal scalar] (* signal
scalar)) trial scalars)) group)) signal target)
Going from Java to Clojure isn't quite as easy as going the other way,
as @brweber2 demonstrated at the local Clojure meetup. Here's the code
he used in the presentation, might send him a direct message on
Twitter for more info:
http://github.com/brweber2/javacallclj
On Aug 22, 7:48 pm, Robert
It's never been clear to me exactly what the code is supposed to be
do. For example, the spec for the binary-tree test is so wholly
lacking in any details that I'm left to infer that one is supposed to
copy an implementation used previously, though without any indication
as to which is the
I think the re? definition might belong around line 447 of core with
the rest of the more normal looking
instance? functions.
On Mon, Aug 23, 2010 at 1:27 PM, Sean Devlin francoisdev...@gmail.com wrote:
Be very careful when copying the style of clojure.core. There are a
lot of non-standard
I hear you --- I got excited about this too, and implemented the fannuchredux
algorithm, only to be thwarted by an undocumented checksum each
program is also
supposed to calculate. This checksum depends heavily on the exact
order in which
a set of permutations are traversed. And of course, they
Hi,
On 24 Aug., 03:08, gary ng garyng2...@gmail.com wrote:
(map #(for [s %2] (map * %1 s)) target signal)
Though personally I still think the %2 %1 is a bit confusing.- Zitierten Text
ausblenden -
If you don't like it, don't use it.You can always give things
meaningful names.
(for
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