Since my last post, I've implemented and successfully run everything
in this sample program except the ToggleShape class, and I absolutely
cannot figure out how to use proxy correctly. Here's the Java code
that I'm trying to re-create in Clojure:
class ToggleShape extends PPath {
priva
On Apr 13, 5:14 pm, Alex Osborne wrote:
> Travis writes:
> > I'm just curious where those numbers come from. For example, if I
> > compile the class bar.clj containing:
>
> > (ns bar)
> > (defn foo []
> > nil)
>
> > I'll get three classes, one of which is:
>
> > bar$foo__5.class
>
> The number
Travis writes:
> I'm just curious where those numbers come from. For example, if I
> compile the class bar.clj containing:
>
> (ns bar)
> (defn foo []
> nil)
>
> I'll get three classes, one of which is:
>
> bar$foo__5.class
The numbers are just a global incrementing counter (the same one used
> You do mean keywords rather than symbols, right? A symbol would be
> 'hello. A keyword is :hello.
> The ruby name for the clojure keyword concept is "symbol". I used to
> get the terminology backwards because of that.
>
> (assert (= (name :hello) "hello"))
> (assert (= :hello (keyword "hello")))
You do mean keywords rather than symbols, right? A symbol would be
'hello. A keyword is :hello.
The ruby name for the clojure keyword concept is "symbol". I used to
get the terminology backwards because of that.
(assert (= (name :hello) "hello"))
(assert (= :hello (keyword "hello")))
On Apr 13, 2
I want to map a dictionary and do different things depending on the
key. I was planning on using an if-clause, but I'm not sure how to
compare symbols to strings.
Something like
(map (fn [k v] (if (== k "hello") ... ...) {:hello 1 :goodbye 2})
How would I normally compare symbols and strings?
I'm just curious where those numbers come from. For example, if I
compile the class bar.clj containing:
(ns bar)
(defn foo []
nil)
I'll get three classes, one of which is:
bar$foo__5.class
What is that "5" for?
Thanks,
Travis
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Thanks guys :-). I didn't know about some and includes?.
On 4/13/10, Stuart Halloway wrote:
> Hi Chris,
>
> includes? is in clojure.contrib.seq. Note that it runs in linear time.
>
> This will feature prominently in the FAQ when I update it. :-)
>
> Stu
>
>> Hi,
>>
>> Is there a standard function
Recently I've been working on bits of code that require me to type in fairly
long sequences of math operations. I found it tedious to convert these to
type hinted binary operations so I've created the following truly simplistic
macro:
http://gist.github.com/364328
It lets you write things like th
Wow - thanks everybody.
On 13 Apr 2010, at 14:32, Rich Hickey wrote:
>
>
> On Apr 12, 7:53 pm, Stuart Halloway wrote:
>> Hi Edmund,
>>
>> This is a regression since last Tuesday's commit
>> f81e612cc9ff91ddefc1d86e270cd7f018701802. Thanks for catching it!
>>
>> Stu
>>
>>
>>
>>> Dear Clo
OpenCSV is included with Incanter and used in the incanter.io/read-
dataset function.
On Apr 13, 10:30 am, Sean Devlin wrote:
> I'll be greedy... is there a known Clojure wrapper?
>
> On Apr 13, 10:27 am, Meikel Brandmeyer wrote:
>
>
>
> > Hi,
>
> > On Apr 13, 4:25 pm, Sean Devlin wrote:
>
>
Challenge Accepted.
Will work on this when Rich says 1.2 is ready for beta (i.e. API
freeze).
Sean
On Apr 13, 10:33 am, Stuart Halloway
wrote:
> Here's a pure Clojure one:http://github.com/davidsantiago/clojure-csv
>
> And here's a challenge for you: Use protocols to describe a minimal
> cont
Here's a pure Clojure one: http://github.com/davidsantiago/clojure-csv
And here's a challenge for you: Use protocols to describe a minimal
contract for CSV parsing, then show how protocols solve the expression
problem by letting you backfit to existing Java libs without wrappers
or adapters
I'll be greedy... is there a known Clojure wrapper?
On Apr 13, 10:27 am, Meikel Brandmeyer wrote:
> Hi,
>
> On Apr 13, 4:25 pm, Sean Devlin wrote:
>
> > Anyone know where to start with parsing a csv file?
>
> I found OpenCSV to be useful.
>
> Sincerely
> Meikel
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Hi,
On Apr 13, 4:25 pm, Sean Devlin wrote:
> Anyone know where to start with parsing a csv file?
I found OpenCSV to be useful.
Sincerely
Meikel
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Anyone know where to start with parsing a csv file?
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Hi Chris,
includes? is in clojure.contrib.seq. Note that it runs in linear time.
This will feature prominently in the FAQ when I update it. :-)
Stu
Hi,
Is there a standard function to test to see if an object is an
element of a sequence? I'm looking for an equivalent of Haskell's
elem fu
Hi,
On Apr 13, 4:20 pm, Chris Jenkins wrote:
> Is there a standard function to test to see if an object is an element of a
> sequence? I'm looking for an equivalent of Haskell's elem function.
>
> I wrote my own (badly)...
>
> (defn elem? [obj l]
> (if (empty? l)
> false
> (if (= obj (
Hi,
Is there a standard function to test to see if an object is an element of a
sequence? I'm looking for an equivalent of Haskell's elem function.
I wrote my own (badly)...
(defn elem? [obj l]
(if (empty? l)
false
(if (= obj (first l))
true
(elem? obj (rest l)
...but
Glad you've enjoyed them!
2010/4/13 Pelayo Ramón
> I have seen the first 2, and as a clojure noobie I have to say that
> they are great. Thanks a lot.
>
> On Tue, Apr 13, 2010 at 3:10 PM, Craig Andera
> wrote:
> > If you mean "downloading and viewing on my computers and mobile devices",
> > the
On 13 April 2010 14:13, Nurullah Akkaya wrote:
> 0.2.2 fixes this issue.
Yes, and currently Hiccup 0.2.3 is the latest version. I'd recommend
using 0.2.3, as it has no known bugs as of this post.
- James
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On Apr 12, 7:53 pm, Stuart Halloway wrote:
> Hi Edmund,
>
> This is a regression since last Tuesday's commit
> f81e612cc9ff91ddefc1d86e270cd7f018701802. Thanks for catching it!
>
> Stu
>
>
>
> > Dear Clojurians,
>
> > I have been trying to get a proper grip on the operation of lazy-
> > seq
I have seen the first 2, and as a clojure noobie I have to say that
they are great. Thanks a lot.
On Tue, Apr 13, 2010 at 3:10 PM, Craig Andera wrote:
> If you mean "downloading and viewing on my computers and mobile devices",
> then sure. There's no DRM. There's not even any registration require
Which version of hiccup?
there was a bug discussed in compojure mailing list couple of days ago,
where hiccup pre compilation fails when there are vars inside maps.
http://groups.google.com/group/compojure/browse_thread/thread/d512a04a08aaa64f#
0.2.2 fixes this issue.
--
Nurullah Akkaya
http://n
If you mean "downloading and viewing on my computers and mobile devices",
then sure. There's no DRM. There's not even any registration required. But
if by "copying" you mean "distributing to other people", then no. If you
have some other scenario in mind, contact me off-list and I'll hook you up
wi
Hi,
Is downloading and copying the videos free?
On Tue, Apr 13, 2010 at 1:10 AM, Craig Andera wrote:
> That's typing-speed-mode. I wrote it. :) Available here [1]. You'll
> probably also want this [2] in your .emacs.
>
> [1]
> http://www.pluralsight-training.net/community/blogs/craig/archive/200
try the following:
(defn avg-coll [coll] (/ (reduce + coll) (count coll)))
then use it on your collection of collections:
(map #(avg-coll %) (list (list 1 2 3) (list 6 4 2)))
this will give you (2 4)
hope this helps.
On Apr 12, 10:48 pm, Glen Rubin wrote:
> I am working with a collection of
Hey All,
Does anyone know why the first expression below works but the second doesn't?
What's the right way to do this?
user=> (use 'hiccup.core)
nil
user=> (html (for [image ["image017.jpg" "image021.jpg"]] [:img image]))
"image017.jpgimage021.jpg"
user=> (html (for [image ["image017.jpg" "ima
How would one write a unit test to catch this type of thing?
On Apr 12, 7:53 pm, Stuart Halloway wrote:
> Hi Edmund,
>
> This is a regression since last Tuesday's commit
> f81e612cc9ff91ddefc1d86e270cd7f018701802. Thanks for catching it!
>
> Stu
>
> > Dear Clojurians,
>
> > I have been tryin
On Tuesday, April 13, 2010, Mark J. Reed wrote:
> (defn mean [& rest] (/ (apply + reset) (count rest)))
that "reset" should be "rest".
> And then use the same trick with it in place of +:
> (apply map mean '((1 2 4) (2 4 6) (1 3 5)))
> which yields (4/3 3 5).
--
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On Tue, Apr 13, 2010 at 10:09 AM, Michael Kohl wrote:
> Disclaimer: I have not had my morning coffee yet
And I apparently missed a mail in this thread, (apply map +) was
already posted an is a lot more straightforward.
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On Tue, Apr 13, 2010 at 4:48 AM, Glen Rubin wrote:
> I want to create an average sequence such that all of the first
> elements are averaged, all of the second elements, etc
Sounds like you want a traspose function. Here you go:
(defn transpose [m]
(apply map list m))
Example:
user=> (de
Hi,
This is an interesting article on the problems associated with
concurrency and some of the current solutions.
http://www.facebook.com/notes/facebook-engineering/a-dismal-guide-to-concurrency/379717628919
It mentions Clojure for a bit and says this about the general idea
behind STMs -
"
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