Interesting - thanks all.
My experience of Light Table is quite close to Norman's, although I
discounted that *in my case* to not spending enough time with it. Knowing
a little about who Sean is (from following your blog/comments/clojure.jdbc,
not stalking! :)) I put a lot of weight behind
Hi Malcolm,
I have a follow up question if you don't mind. Suppose I want to define a
component that starts a thread and regularly checks a resource. If the
resource changes, this has repercussions for other (dependent)
components. How would you do that in jig?
Maybe this question is too
Hey Dave,
Thanks for that heads up. I originally wanted auto-compiling for *HAML* and
*SCSS*. But then thought why, when I could just use edn with *Hiccup* and
*Garden*. Now, a lein-hiccup, or some auto compile tool doesn't exist to my
knowledge. So *i)* I had to do that work anyways. Then I
On Wednesday, February 5, 2014, Sean Corfield wrote:
It's one of the things that has me really
hooked on LightTable. I have my source and test namespaces both open.
I have them both connected to a REPL. I can evaluate any code, in
place, in either file. If I grow some code in the source
(sorry if you received an earlier mail from me that was half-formed, I hit
send by accident)
Hi there, I'm quite new to Clojure, and was trying to do some very simple
benchmarking with other languages. I was surprised by the floating-point
results I got, which differed (for the same
IIRC, Java provides unusual trigonometric functions which, I’m guessing,
Clojure is using. I think the Java ones are actually more accurate (and slower)
so you may well find the answer obtained on the JVM is more precise than the
others.
Cheers,
Jon.
From: clojure@googlegroups.com
Thanks for the tip. After reading your comment, I looked and discovered
the Java library called StrictMath, and tried it (replacing Math/cos and
Math/sin by the StrictMath versions). I did indeed get different results
than with the regular library, but unfortunately still not the same answer
--On 5 Feb 2014 05:17:13 -0800 Glen Fraser holag...@gmail.com wrote:
My benchmark iteratively runs a function 100M times: g(x) -- sin(2.3x) +
cos(3.7x), starting with x of 0.
A quick look at the series you are computing suggests that it has chaotic
behavior. Another quick looks shows that
Thanks, this is a satisfying answer. You're probably right that the other
languages are all using the C standard math library (I naïvely assumed Java
would too, but I see that's not the case). And yes, as I said, it is a rather
contrived (and chaotic) example.
Glen.
On Feb 5, 2014, at 6:22
Hello, as we approach the end game for Clojure 1.6 and start looking
forward to the next release, now is a good time to look at the existing
ticket backlog and vote on things that are important to you.
Andy's weighted ticket vote report is a good place to start - it includes
all tickets currently
Ah, I see now that you are doing (g x) in your loop, not (g i), so scratch
what I said about the loop running the wrong direction.
On Wed, Feb 5, 2014 at 9:23 AM, Mark Engelberg mark.engelb...@gmail.comwrote:
Looks to me like your Clojure loop runs in the opposite direction
(counting
Hello, all,
It's time once again to prepare our application for Google Summer of
Code, a program where Google pays students from around the world to work
on open source projects. Clojure has successfully participated in the
program for two years now, and I would love to make it a third. GSoC
Looks to me like your Clojure loop runs in the opposite direction (counting
downwards) versus the other languages. Since your code only returns the
result of the last iteration of the loop, it's not too surprising that they
return completely different results -- the last iteration of the Clojure
I'd agree here.
This is actually a very nice example of a system that might be called
chaotic, though
chaos is, even mathematically, a very vague term:
1) the iteration will never leave [-2, 2]
2) it won't converge because all 3 fixed points are unstable ( |f'(x_s)|1 )
So, your example is
Others have answered with many useful bits but I would mention that it
would possibly make a significant performance difference if you added this
to your code:
(set! *unchecked-math* true)
On Wednesday, February 5, 2014 7:17:13 AM UTC-6, Glen Fraser wrote:
(sorry if you received an earlier
Also:
(defn g ^double [^double x] (+ (Math/sin (* 2.3 x)) (Math/cos (* 3.7 x
On Wed, Feb 5, 2014 at 2:07 PM, Alex Miller a...@puredanger.com wrote:
Others have answered with many useful bits but I would mention that it
would possibly make a significant performance difference if you added
On Feb 5, 2014, at 5:39 AM, John D. Hume duelin.mark...@gmail.com wrote:
Could you clarify the difference between LightTable's M-) and using C-M-x* in
Emacs jacked into an nrepl session with Cider?
M-) is paredit-forward-slurp-sexp in both LightTable and Emacs.
The key difference here is that
Hi,
Does anyone know of a class diagram of all the java interfaces and classes
that exist in clojure, including their inheritance relationships. Im trying
to get a handle on all the many collection/sequence interfaces, but ideally
I would like to visually grok the whole fundamental clojure
On Wed Feb 5 13:16:01 2014, Andy Smith wrote:
Hi,
Does anyone know of a class diagram of all the java interfaces and
classes that exist in clojure, including their inheritance
relationships. Im trying to get a handle on all the many
collection/sequence interfaces, but ideally I would like to
As a TDD practitioner and
Expectationshttps://github.com/jaycfields/expectationsuser, I've been
following this thread with great interest!
@Jay: Will your change in thinking have any impact on Expectations?
My experience with TDD in Clojure has been an overwhelmingly positive one,
and it
Thanks to both of you for these suggestions, they're good to know. In my
specific case, setting the *unchecked-math* flag true did indeed speed things
up slightly (by about 6%). The other change, though, with the double type
hints (I assume that's what those are), actually ran notably slower
+100
My English is bad, but you expressed my position about TDD in general
(I'm not a clojurian, yet, but I really appreciate TDD workflow in other
technologies).
On Wed, Feb 5, 2014 at 6:35 PM, James Trunk james.tr...@gmail.com wrote:
As a TDD practitioner and
(set! *unchecked-math* true)
(defn g ^double [^double x] (+ (Math/sin (* 2.3 x)) (Math/cos (* 3.7 x
(time (loop [i 1 x 0.0] (if (pos? i) (recur (dec i) (g x)) x)))
This is nearly 50% faster than the original version on my machine. Note
that x is bound to 0.0 in the loop, which allows
On Wed, Feb 5, 2014 at 1:27 PM, Sean Corfield s...@corfield.org wrote:
On Feb 5, 2014, at 5:39 AM, John D. Hume duelin.mark...@gmail.com wrote:
Could you clarify the difference between LightTable's M-) and using
C-M-x* in Emacs jacked into an nrepl session with Cider?
M-) is
Hi Dan
First of all thank you for Reagent - I'm enjoying playing with the library.
Do you have a simple example of passing child components and then rendering
them as I cannot get this to work - I fairly new to Clojure so it could be
user error.
cheers
Dave
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Thanks, yes, the version starting with 0.0 in the loop (rather than 0) does run
faster. In my case, about 13% faster (19.7 seconds -- for the code you pasted
below, with *unchecked-math*, type hints and starting x of 0.0 -- vs 22.7
seconds for my original version). But if you start with x of
You need to make sure that you are running with server settings. If you are
using lein, it's likely that this is not the case unless you have
overridden lein's defaults in your project.clj.
On Wed, Feb 5, 2014 at 5:30 PM, Glen Fraser holag...@gmail.com wrote:
Thanks, yes, the version starting
On 5 feb 2014, at 23:28, David Simmons shortlypor...@gmail.com wrote:
Do you have a simple example of passing child components and then rendering
them as I cannot get this to work - I fairly new to Clojure so it could be
user error.
Yeah, that is apparently a bit tricky: see
Thanks Dan I'll give this a go.
cheers
Dave
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On Wed, Feb 5, 2014 at 4:35 PM, James Trunk james.tr...@gmail.com wrote:
As a TDD practitioner and Expectations user, I've been following this thread
with great interest!
@Jay: Will your change in thinking have any impact on Expectations?
I don't anticipate making any changes to expectations,
To override the default tiered compilation, add this to your project.clj:
:jvm-opts ^:replace []
I would also recommend using a newer JDK (preferably 7, but at least 6).
On Wednesday, February 5, 2014 4:34:12 PM UTC-6, David Nolen wrote:
You need to make sure that you are running with
Did I see a thread a while ago where doing this caught some people out
because it wiped out some other performance switches? I can't find the
thread.
Apologies if I am spreading FUD
On Wednesday, 5 February 2014 23:05:18 UTC, Alex Miller wrote:
To override the default tiered
This is very similar to Sean's solution, but all values will be vectors:
(reduce
(fn [acc [k v]]
(update-in acc [k]
#(conj (or %1 []) v))) {}
[[:a 123] [:b 124] [:a 125] [:c 126] [:b 127] [:a 100]])
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He is running 7.
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On Feb 5, 2014, at 6:05 PM, Alex Miller wrote:
To override the default tiered compilation, add this to your project.clj:
:jvm-opts ^:replace []
I was under the impression that one can get the same effect by running your
program with:
lein trampoline with-profile production run [etc]
True?
Modern JVM's pick default heap sizes based on the physical memory in
your machine. With more than 1GB of physical memory, initial heap is
1/64 and maximum heap is 1/4 of physical memory.[1]
For OpenJDK and Oracle, this command:
java -XX:+PrintFlagsFinal -version | grep HeapSize
will show the
On Feb 5, 2014, at 8:50 PM, Bruce Adams wrote:
Modern JVM's pick default heap sizes based on the physical memory in
your machine. With more than 1GB of physical memory, initial heap is
1/64 and maximum heap is 1/4 of physical memory.[1]
For OpenJDK and Oracle, this command:
java
The project URL is https://github.com/noprompt/lein-garden;. (Sorry, if
this was mentioned before, I joined recently.)
On Wed, Feb 5, 2014 at 12:28 PM, da...@dsargeant.com wrote:
Looks cool. I'll be sure to check it out.
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If you're not worried about order, you could also write:
(reduce (fn [m [k v]] (update-in m [k] conj v)) {} values)
- James
On 6 February 2014 00:40, Paul Mooser taron...@gmail.com wrote:
This is very similar to Sean's solution, but all values will be vectors:
(reduce
(fn [acc [k v]]
FWIW, I find the language of Expectations to be much better suited to
describing the desired behaviors of a system I want to build than the
assertion-based language of clojure.test - so for me it's about
test-before, not test-after.
Sean
On Wed, Feb 5, 2014 at 2:52 PM, Jay Fields
I'd start here: http://www.clojureatlas.com
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On Wed, Feb 5, 2014 at 1:56 PM, John D. Hume duelin.mark...@gmail.com wrote:
The misconception I hope is disappearing is that REPL-driven development in
Emacs necessarily involves lots of switching and copy-pasting back and forth
between source file buffers and a REPL buffer. The video in Jay's
The idea to watch edn or garden files was a consideration of lein-garden
but decided against it because, personally, I felt it was giving up a lot.
However, some folks may prefer this approach and, hopefully, it suits them
just as well.
On Wednesday, February 5, 2014 4:45:43 AM UTC-8, frye
Wat? I think you may have meant to post this comment somewhere else. That's
certainly not the case. But I think I did forget to share the link which
is: https://github.com/noprompt/lein-describe
On Wednesday, February 5, 2014 6:23:25 PM UTC-8, Atamert Ölçgen wrote:
The project URL is
I posted to the correct thread. Check the project.clj please.
On Thu, Feb 6, 2014 at 12:05 PM, Joel Holdbrooks cjholdbro...@gmail.comwrote:
Wat? I think you may have meant to post this comment somewhere else.
That's certainly not the case. But I think I did forget to share the link
which is:
This returns
(.getTotalPhysicalMemorySize
(java.lang.management.ManagementFactory/getOperatingSystemMXBean))
You could use this in your project.clj, perhaps by including
~(str -Xms (quot (.getTotalPhysicalMemorySize ...) appropriate-number))
in :jvm-opts.
Also, you can absolutely use your own
Clojure.
On Feb 5, 2014, at 8:42 PM, Timothy Washington twash...@gmail.com wrote:
Ok, that's fine. Definitely good to have both ways to tackle the problem. But
I'm curious. What do you feel is being given up by watching garden files?
Thanks
Tim Washington
Interruptsoftware.com
Check which project.clj? You posted a link to lien-garden. Am I missing
something here?
On Wednesday, February 5, 2014 8:29:35 PM UTC-8, Atamert Ölçgen wrote:
I posted to the correct thread. Check the project.clj please.
On Thu, Feb 6, 2014 at 12:05 PM, Joel Holdbrooks
It's easy to find information on the net about the general concept of a
Clojure chunked sequence, and about the effects of using chunked
sequences. I would like to understand the code that deals with chunked
sequences in the Clojure source, in functions such as map and doseq. Any
suggestions
Just to be completely clear, I want to understand the source code for map
and doseq. The parts that deal with chunked sequences are confusing to me.
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Oh, hey, thanks. I didn't catch that. Great copy/paste fail, eh. Maybe next
time post an issue to the Github. :-)
On Feb 5, 2014, at 8:29 PM, Atamert Ölçgen mu...@muhuk.com wrote:
I posted to the correct thread. Check the project.clj please.
On Thu, Feb 6, 2014 at 12:05 PM, Joel
Hi,
I've set up lein-ring with ring :auto-refresh? true but don't see updates
in the browser unless I refresh manually. It seems I have something
configured wrong but I can't see it. Does this look right?...
(defproject mystuff 0.1.0-SNAPSHOT
:description experiment
:url
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