Hi Volker,
not sure I understand you correctly. You should still be able to type
into the repl and get results, even if it is 'in-browser', right? At
least that works for me if I start the browser repl on the command
line. So it should also work in Emacs, I am pretty sure its something
weird with
Javier, Nathan +1
I think type systems such as Haskells (and presumably Scala's FP stuff,
don't know anything about that) are really the way to go if you want static
typing. I think the extra safety that it provides you with is really
beneficial and for most things Haskells type system feels prett
Hi Nathan!
I am very intrigued by your approach. I would love to contribute, my problem
is that I don't know the first thing about type inference systems (as in how
they work on the inside). Do you have a good reference here? I'll take a
look at what you've done, maybe bother you with some questio
I'm using clojure.walk/postwalk to rewrite terms in nested data
structures. However, I am unable to do this with types as defined by
defrecord, because they specify that the function "empty" throw a not-
implemented exception.
If I were able to over-ride this default implementation of 'empty' I
b
I am following the general strategy described in Sam Tobin-Hochstadt's
work. He is the person behind typed-racket. His Phd dissertation[1]
has an overview of the area of gradual/soft/refinement typing in
dynamic languages. It's a good place to start, with a pretty gentle
introduction to the motivat
Hi Nathan,
thanks for the pointer, this is great! I got his dissertation, this
does seem like a great starting point given that he is the guy behind
typed racket. The wikipedia page on sequent calculus also looks
promising, let's see how far I'll make it ;)
Thanks for the pointer
Paul
On Sep 27,
You are right, Alan!
And in this case Closure compiler behave itself also unpredictably and
quite the contrary:
Where it must evaluate a symbol (like in this case), it doesn't.
Where it mustn't evaluate a symbol (argument of macro), it does.
So, need to have comprehensive and profound knowledge ab
Is the README file from Clojure on github the best 1.3 documentation
for the moment?
For example, I can't find a mention of "Factory function taking a map"
, e.g. map->MyRecord on the main clojure.org
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Hi!
I would be nice If after entering on
http://clojure.github.com/clojure/branch-master/index.html I could see what
is new, what has changed (just bold new methods, cross the removed one and
skew the changed one) links and what new concepts are in progress. I think
that it is easy to do.
For
Btw. Cheat Sheet doesn't look good on iPad. Some columns are shifted
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Ohh... And it would be nice if hovering with mouse pointer on function name
in cheetsheet would show tool tip (made with AJAX; the results would be
cached; thought about clojurescript - its a high time to proof its
usability) with functions description and signature and after clicking link
"mor
Hello,
I took Travis Whitton's brush for Clojure[1] for Alex Gorbatchev's
SyntaxHighlighter[2] and put it in a git repo in GitHub, with an index file
to easy development and trying it out. I also fixed some bugs and did some
improvements. The new code is here:
https://github.com/pupeno/clojure
> And in this case Closure compiler behave itself also unpredictably and
> quite the contrary:
> Where it must evaluate a symbol (like in this case), it doesn't.
Symbols need to be namespace resolved in order to be evaluated
properly. This is something you need to be aware of, but it is not
unpre
On 26 September 2011 18:46, Jonathan Fischer Friberg
wrote:
> To Marczyk:
> Sure, where to?
Great, thanks!
The relevant details are available on this page:
http://clojure.org/contributing
There's a one-page form to print out, sign and send off to Rich by
snail mail. Once it's processed, your n
Hey guys,
I will be giving a talk at JavaOne (it is Clojure related). Here is
the information.
Title: Monitoring a Large-Scale Infrastructure with Clojure
Time Tuesday, 07:30 PM, Parc 55 - Embarcadero
Length 45 Minutes
Abstract: Monitoring a large infr
I need to do some pretty simple statistics in a Clojure program and Incanter
produces results that I think must be wrong (details below). So I don't think I
can trust it.
Is there other code for statistical testing out there? Or maybe somebody could
explain to me how to interpret the seemingly
Pardon my ignorance -- I've not done anything with AJAX before. Is there a
way to do this in a single HTML file, and include all of the tooltips in
that file?
If so, do you have an example of this I could use to learn from? Just two
or three links each with different tooltips would be enough to
> Is there a
> way to do this in a single HTML file, and include all of the tooltips in
> that file?
Yes, there is. There are a lot of options out there, but I've found
qTip to be pretty simple.
http://craigsworks.com/projects/qtip/demos/content/basic
If you don't want to use any third-party lib
The problem is what does empty mean in the context of defrecord? A new
instance of a defrecord is not "empty", it has those fields and they are set
to nil.
David
On Tue, Sep 27, 2011 at 3:48 AM, Nathan Sorenson wrote:
> I'm using clojure.walk/postwalk to rewrite terms in nested data
> structure
On a similar note, I will also be at J1 representing Clojure in the
script bowl. It is wednesday morning at 8:30. The audience chooses the
winner, so if you are at J1 and want to support Clojure, you have your
chance!
Cheers,
Aaron Bedra
--
Clojure/core
http://clojure.com
On 09/27/2011 11
Lee Spector writes:
> I need to do some pretty simple statistics in a Clojure program and
> Incanter produces results that I think must be wrong (details
> below). So I don't think I can trust it.
I agree, those all look weird to me.
> Is there other code for statistical testing out there?
I'd
On 27 сен, 16:45, Mark Rathwell wrote:
> > And in this case Closure compiler behave itself also unpredictably and
> > quite the contrary:
> > Where it must evaluate a symbol (like in this case), it doesn't.
>
> Symbols need to be namespace resolved in order to be evaluated
> properly. This is s
Johann Hibschman writes:
> There may be an easier way to do this, but this worked for me:
>
> user=> (org.apache.commons.math.stat.inference.TestUtils/tTest
> (into-array Double/TYPE [40 5 2]) (into-array Double/TYPE [1 5 1]))
> 0.3884493044983227
I should have used (double-array [40 5 2
2011/9/27 ru
>
> user=> (defmacro infix [e] `(let [[x# f# y#] ~e] (f# x# y#)))
> #'user/infix
> user=> (infix (5 + 4))
> java.lang.ClassCastException: java.lang.Integer cannot be cast to
> clojure.lang.IFn (NO_SOURCE_FILE:0)
>
> I insist that expansion is not quite correct. Am I right?
Your mac
> In this point I want to cite Clojure doc, that say nothing about
> expansion and runtime, once more: "..If the operator of a call is a
> symbol that names a global var that is a macro function, that macro
> function is called and is passed the /unevaluated/ operand forms. "
> So, when I write th
You're right that my use isn't strictly returning a collection with a size
of zero-- I'm treating empty more like 'default'. I'm thinking of its use in
clojure.walk, which simply creates a "blank" version of an arbitrary
collection in which to place the altered sub-forms. I can't find any other
On Tue, Sep 27, 2011 at 1:54 PM, Nathan Sorenson wrote:
> Should IPersistentCollection even be defining 'empty', if one of the
> language's key data types doesn't support it? I think it would be better to
> either pull 'empty' into it's own protocol so clojure.walk doesn't match on
> IPersistentC
On Sep 27, 2011, at 1:37 PM, Johann Hibschman wrote:
> Johann Hibschman writes:
>
>> There may be an easier way to do this, but this worked for me:
>>
>> user=> (org.apache.commons.math.stat.inference.TestUtils/tTest
>>(into-array Double/TYPE [40 5 2]) (into-array Double/TYPE [1 5 1]))
>>
i i i i i i i ooooo o o
I I I I I I I 8 8 8 8 8 o 88
I \ `+' / I 8 8 8 888
\ `-+-' / 8 8 8 o 8
`-__|__-'8 8
2011/9/27 ru
> All, I give up! :)
You're macro will still be incorrect in CLISP, SBCL, CMUCL, Clozure MCL,
ABCL, MIT Scheme, Gambit Scheme, Chicken, Ikarus, Racket etc. ;)
David
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-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Am 27.09.2011 06:27, schrieb Baishampayan Ghose:
>> i wasn't really trying to achieve anything useful - just messing
>> around and see where i get.
>>
>> now i'm here: (defrecord point [x y z]) (defn genPoints [n] (let
>> [random (new Random) randomI
Dear Everyone,
I would like to make a suggestion for the future of Clojure, and
hopefully prompt a discussion. My comment comes as a result of my
experience trying to port code to 1.3. I have run into numerous
problems, most of which come from 1.3's incompatibilities with my 1.2-
targeted code and
On Fri, Sep 23, 2011 at 2:44 PM, Christopher Redinger
wrote:
> We are pleased to announce today the release of Clojure 1.3:
We took Clojure 1.3 into production today, along with a lot more
Clojure code compared to our previous production release. We've
converted all of our profile publishing and
Sean,
On Tue, Sep 27, 2011 at 20:17, Sean Corfield wrote:
> On Fri, Sep 23, 2011 at 2:44 PM, Christopher Redinger
> wrote:
>> We are pleased to announce today the release of Clojure 1.3:
>
> We took Clojure 1.3 into production today, along with a lot more
> Clojure code compared to our previous
It seems you are enjoying spewing accusations at Clojure, but if your
goal is to actually get something done, you would get a lot more out
of this discussion if your attitude were "Huh, I expected x but see y!
Is that a bug or am I wrong? Oh I see, it's not a bug? I still don't
understand, please e
Hi Paul,
sorry, I was blindly assuming you were starting a browser repl without
hooking it up with a browser :)
Reversing your posts, that becomes clear ...
What happens when you do the following
M-x set-variable
enter: inferior-lisp-program
enter: "/path/to/repl/script"
M-x inferior-lisp
?
s/repl/repljs/
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Alan,
Please forgive me. I am very sorry. May be my English is not so good.
Simply, I stupidly kept the idea that macro differs from the function
in that is evaluated twice, the first time with the unevaluated
arguments. When I saw that even in Lisp it is not the case, I gave up :
(
Sincerely,
On Tue, Sep 27, 2011 at 12:22 PM, Bruce Durling wrote:
> That is great to hear. So happy to see someone use a lot of clojure in
> production. Congrats on the release.
Thanx. You can get a lot done with just a little Clojure. We stand at
1,829 lines of production Clojure code and 448 lines of unit
Hi Ru,
let's input your macro definition at the REPL:
user> (defmacro infix [e] `(let [[x# f# y#] ~e] (f# x# y#)))
#'user/infix
So far so good. Now let's try use it in a function:
user> (defn foo [] (infix (5 + 4)))
#'user/foo
Well now -- it compiled! So, there's no exception being thrown when
On Tue, Sep 27, 2011 at 11:57 AM, Arthur Edelstein
wrote:
> So my request for Clojure's future development, is that backwards
> compatibility not be broken. This means that Clojure code needs a way
> of designating what Clojure version it is targeted for. Then, for
> example, the Clojure 1.4 jar s
Good news everyone! *
tl;dr -> http://bit.ly/ams-clj
On Wednesday, October 12th Amsterdam Clojurians is organizing October Amsterdam
Clojure.
Same as last year, we are proud to have a great speaker: Uncle Bob Martin.
Sourcesense.com is our proud sponsor and made it possible to host the event i
Yes, those errors in Incanter are unfortunate. I had another weird one
occurred which David Liebke attributed to the underlying Colt library.
user=> (sd (repeat 9 0.65))
NaN
The sd function calls the variance function, which calls a function in
Colt; the trouble is Colt is returning a number ve
I'm with Phil on that one. Legacy support slows or even hinders innovation.
On Sep 28, 2011 6:06 AM, "Phil Hagelberg" wrote:
> On Tue, Sep 27, 2011 at 11:57 AM, Arthur Edelstein
> wrote:
>> So my request for Clojure's future development, is that backwards
>> compatibility not be broken. This mean
Just wanted to report that the documentation for atom misspells
"become" as "be come"
--Robert McIntyre
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> Again, if I understand correctly, under no circumstances should the p-value
> ever be outside of the range from 0 to 1. It's a probability, and no value
> outside of that range makes any sense. But Incanter sometimes returns
> p-values greater than 1.
I see that there was a recent fix made to
This is quite amusing since the first reply to the original post already
provided the correct answer :)
On Sep 28, 2011 6:05 AM, "Michał Marczyk" wrote:
> Hi Ru,
>
> let's input your macro definition at the REPL:
>
> user> (defmacro infix [e] `(let [[x# f# y#] ~e] (f# x# y#)))
> #'user/infix
>
> S
On Tue, Sep 27, 2011 at 11:57 AM, Arthur Edelstein
wrote:
> raises the question of what happens to all of the many existing
> Clojure 1.2-based libraries in Clojars and on github. Many of these
> are very useful, but not necessarily actively maintained. A lot of
Are therein lies the problem: if t
Hi,
From clojure doc, it states iterate takes a side-effect free function,
and what's the implication if the function has side-effect as follow?
(->> 0
(iterate (fn [cnt]
(prn cnt)
;; save data to csv
(Thread/sleep 6000)
(inc cn
I'm trying to figure out why when I require('cljs.core') in a
javascript file, the hello world example doesn't work.
hello.js
goog.require('cljs.core'); ;;<--- If I delete this line,
then everything works.
goog.require('goog.dom');
function sayHi() {
var myc__2284 = goog.dom.cre
What was the error and what were your compile options?
On Tuesday, September 27, 2011, Brent Millare
wrote:
> I'm trying to figure out why when I require('cljs.core') in a
> javascript file, the hello world example doesn't work.
>
> hello.js
> goog.require('cljs.core'); ;;<--- If I
You can try out the code I posted, but basically I wanted to create a
hello world canvas. Without the require, I get the canvas. With the
require, I get a blank white page.
There isn't any error message, which is what made this particularly
difficult to narrow.
-Brent
On Sep 27, 7:01 pm, David N
On Sep 27, 2011, at 5:18 PM, Sean Corfield wrote:
> Are therein lies the problem: if they are not actively maintained,
> you're not going to get bug fixes even on Clojure 1.2.
I think "is it actively maintained?" is not a particularly interesting question
for a community. The question is: "is
On Sep 27, 2011, at 5:44 PM, David Powell wrote:
> I see that there was a recent fix made to Incanter:
>
> Fixed typo in :lower-tail? keyword.
> This was causing the complement of the p-value to be returned.
>
> https://github.com/liebke/incanter/pull/39
>
>
> Have you tried the latest versio
On Tue, Sep 27, 2011 at 4:28 PM, Brian Marick wrote:
> I think "is it actively maintained?" is not a particularly interesting
> question for a community. The question is: "is this a useful library?" Then:
> "is the original author maintaining it?" And then, if not: "who will pick it
> up?"
Wel
On Tue, Sep 27, 2011 at 4:43 PM, Sean Corfield wrote:
> The pain of migrating from Contrib 1.2.0 (or earlier) to the New
> Contrib Libraries (whether you stay on Clojure 1.2.x or move to
> Clojure 1.3.0) is a one-time "tax" for early adopters and, as
> unpleasant as that may be, I expect future mi
Because the fn is wrapped in a lazy sequence, the effects won't run if you
ask for the same value again--
For instance:
(def a (iterate (fn [cnt]
(prn cnt)
;; save data to csv
(inc cnt)) 0))
(nth a 5) ... all the effects are fired.
(nth a 5) ...
Fine, I merged the new version and I will add a couple of tests related to
these changes.
Luc
On Mon, 26 Sep 2011 18:46:12 +0200
Jonathan Fischer Friberg wrote:
> I looked at it today and have updated the macro.
> (same gist: https://gist.github.com/1209498)
>
> Additions:
> It detects if a f
On Sep 27, 4:43 pm, Sean Corfield wrote:
> On Tue, Sep 27, 2011 at 4:28 PM, Brian Marick wrote:
> > I think "is it actively maintained?" is not a particularly interesting
> > question for a community. The question is: "is this a useful library?"
> > Then: "is the original author maintaining it?
Also as for compile options, there are none. I initially tried
advanced, but again got a blank page. So I tried no args, and it made
the "out" folder. I looked in there and saw the generated js file. I
looked through that, and edited each line to look like my working js
code. In the end, translatin
> I hope so, too, but very often this doesn't happen in practice. Much
> useful code is not maintained.
>
> If I add a dependency from Clojars or maven central to my project.clj
> file, I don't want to pay the tax of deciding what Clojure version it
> is and whether it is actively maintained,
Clo
On Sep 27, 2011, at 3:40 AM, Paul Koerbitz wrote:
> That said, I read somewhere (can't find the link now, sorry) that
> compile-time type checking in Lisps is difficult because they allow code
> generation at run time? That would still leave the possibility to apply it to
> everything which is
Nathan,
Thanks for the explanation, what i'm trying to do is to "repeatedly" run
a side-effect function until the return value of it meets certain criteria.
It could have been done using loop/recur as shown below, and wondering if
there's alternatives. Is a there general approach to accomp
Quite often I convince myself I need state or some effectful trigger, but
further thought reveals a simpler stateless approach.
That being said--if you absolutely need to be doing something based on
effects, something that absolutely can't be tracked via values in a purely
functional way--like
On Tue, Sep 27, 2011 at 7:33 PM, Arthur Edelstein
wrote:
> I hope so, too, but very often this doesn't happen in practice. Much
> useful code is not maintained.
My position on free open source software is that if it's that useful
to someone, then that someone has at least some obligation to
contr
Hi,
First shot of tools.trace is now available on github:
http://github.com/clojure/tools.trace
As for the traceforms macro, you will notice that when an exception is trapped,
I recompose
an new exception with the necessary form traceback information instead of using
print.
The main reason is
> When you're selecting a library to solve a particular problem, you
> normally have to do some research and evaluate more than one library
> so, for me, the activity of the project and software versions
> supported are part of that necessary research. I can't imagine "just
> using" some random lib
On Wed, Sep 28, 2011 at 12:03 AM, Arthur Edelstein
wrote:
> You may think
> I'm doing it wrong, but I don't think I'm alone at all.
I don't think you're doing anything wrong - and I'm sure many people
only do minimal research on tools they use. I just think your
expectations of Clojure the langua
Thank you Luc!
On Tue, Sep 27, 2011 at 11:44 PM, Luc Prefontaine
wrote:
> First shot of tools.trace is now available on github:
>
> http://github.com/clojure/tools.trace
>
> As for the traceforms macro, you will notice that when an exception is
> trapped, I recompose
> an new exception with the
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