iPhone 4 - 18.2 seconds
iPad 2 - 4.6 seconds
On 2012/09/07 19:48 , bill lam wrote:
I am curious to know what are the timings for iphone and ipad.
It is around 6 to 11 seconds on android depending on CPU.
Срд, 05 Сен 2012, Paul Jackson писал(а):
Some time ago, you and Roger were talki
I am curious to know what are the timings for iphone and ipad.
It is around 6 to 11 seconds on android depending on CPU.
Срд, 05 Сен 2012, Paul Jackson писал(а):
> Some time ago, you and Roger were talking about timings on
> %. 500 500 ?@$ 1000
>
> I believe Roger said he had timings from th
On Sep 7, 2012 10:28 PM, "Piet de Jong" wrote:
>
> Thanks for all the help. This has got me going just fine (at least for
now)
Good to hear.
> lgbfgs used to work find for me under J6. So I miss it under J7.
> Advantage was that it had derivatives and Hessians which are
> important for likeli
Thanks, After I sent the message it rankled me that it might be a problem of
rank.
Linda
-Original Message-
From: programming-boun...@forums.jsoftware.com
[mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Dan Bron
Sent: Friday, September 07, 2012 12:35 PM
To: programm...@js
Rank. All definitions in the DoJ are subject to considerations of rank, though
this often -forgive the pun- tacit.
NB.vi (v x) u (v y)
glue =: dyad def '< (> x) , (> y)'
NB. Rank zero here is key
; z glue"0 ' '
alpha bravo chuck
-
NYCJUG will meet at ThomasNet this coming Tuesday, so we should have
audio and video available over the web. Get more information on our
Meetup site at http://www.meetup.com/J-Dynamic-Functional-Programming/
.
Hope to see you there!
--
Devon
-
I don't know?
From your question, I am imagining you were expecting one of these
results to be different. But without knowing which sentence you were
expecting to be different, and what you were expecting, it's hard to
know for sure.
That said, if you expected your second sentence's result to ma
Now what am I missing?
; z ,&.> ' '
alpha bravo chuck
NB. x u&.v y ↔ vi (v x) u (v y)
;<(>z),>' '
alpha
bravo
chuck
Linda
-Original Message-
From: programming-boun...@forums.jsoftware.com [mailto:programming-
boun...@forums.jsoftware.com] On Behalf Of Linda Al
Chuck caused grief!
-Original Message-
From: programming-boun...@forums.jsoftware.com
[mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Dan Bron
Sent: Friday, September 07, 2012 9:24 AM
To: programm...@jsoftware.com
Cc:
Subject: Re: [Jprogramming] Flattening a list containing
Atom, list, table (http://www.jsoftware.com/help/dictionary/dicta.htm),
..., and then I remember Ken using file, filing cabinet or shelf (?), ...,
but I can not where it's written.
On Fri, Sep 7, 2012 at 7:32 AM, km wrote:
> Somewhere I have seen Ken suggest line and page (and even book and
>
Somewhere I have seen Ken suggest line and page (and even book and library),
but I can't find where. The Primer (click on Pri at the top of the Vocabulary
page) has sections Atom, List, Table, Array (just after Checkpoint D).
Sent from my iPad
On Sep 7, 2012, at 3:03 AM, "Linda Alvord" wrote
...Anyway I can well believe that there's a factor of 1.5 on the PC
(if that's what you're using). The iMac has tricks the PC can only
dream of.
On Fri, Sep 7, 2012 at 3:07 PM, Ian Clark wrote:
> I'm grateful you did. Had you not done so, I'd have persisted in my
> unconscious acceptance of }. be
I'm grateful you did. Had you not done so, I'd have persisted in my
unconscious acceptance of }. being no better or worse than }: .
On Fri, Sep 7, 2012 at 3:02 PM, Roger Hui wrote:
>> But there is a difference, and it's reproducible.
>
> The difference is so small that I wouldn't worry about it.
Yes, I deliberately whittled away at joinstring for one of my
examples, throwing out the code to handle variable-length x. For
longer $z, the timings draw closer together. For shorter z, the
differences are more significant.
On Fri, Sep 7, 2012 at 8:17 AM, Ric Sherlock wrote:
> None of these vers
> But there is a difference, and it's reproducible.
The difference is so small that I wouldn't worry about it. I would not
have posted my msg if I knew that the timings were not reproducible. I
thought there was a factor of 1.5.
On Fri, Sep 7, 2012 at 6:37 AM, Ian Clark wrote:
> The point i
The point is well-made, Roger.
SP=: ' '
b2o=: }.@(( 'x'
$ b2o x
10497510
timer 'b2o x'
0.189877
timer 'b2q x'
0.189789
Counter-intuitive, when I first saw it. But only to be expected, when
I thought it through.
s=: 1e7 $ 'x'
timer '}. s'
0.0148418
timer '}: s'
0.014695
Dropp
There are more issues than that. For example, try it with "chuck" instead of
"charlie".
Also, since > is a scalar verb, the "0 is superfluous. Also, the ,' ' appends
spaces not to the individual words, but to the entire array, so that they all
end up trailing, instead of interspersed as desi
z=: 'alpha' ; 'bravo' ; 'charlie'
' '=,(>"0 z),' '
0 0 0 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 1 1 1 1 1 1
' '=;:^:_1 z
0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0
R.E. Boss
> -Oorspronkelijk bericht-
> Van: programming-boun...@forums.jsoftware.com
> [mailto:programming-bou
Did I miss this somewhere? An alternative without inv.
,(>"0 z),' '
alpha bravo charlie
Linda
-Original Message-
From: programming-boun...@jsoftware.com
[mailto:programming-boun...@jsoftware.com] On Behalf Of Ric Sherlock
Sent: Monday, August 22, 2011 8:09 PM
To: Programming fo
https://sites.google.com/site/jforscience/april-2012/
R.E. Boss
> -Oorspronkelijk bericht-
> Van: programming-boun...@forums.jsoftware.com
> [mailto:programming-boun...@forums.jsoftware.com] Namens david alis
> Verzonden: vrijdag 7 september 2012 12:21
> Aan: Programming forum
> Onderw
Thanks for all the help. This has got me going just fine (at least for now)
Yes I understand my typo:+/@*: should have been +/@:*:
Will try things - have an intensive minimization problem and want
to see how things compare to "amoeba" which is (for my problem) slow
and gets stuck in local a
is there a link to the Journal of J?
[Jprogramming] Journal of J
mikel paternain mikelpater at hotmail.es
Mon Sep 3 18:41:32 UTC 2012
Dears friends.
Journal of J began as a non professional project to expand J in spain.
JoJ is a collaborative proj
I did some forum archeology on joinstring. It was developed over a
couple of years and a couple of threads.
Here:
http://www.jsoftware.com/pipermail/programming/2007-June/007040.html
Then:
http://www.jsoftware.com/pipermail/programming/2007-June/007077.html
A year's fermentation:
http://www.jsoftwa
Also:
'b'([:+/=/&,) 'abcd'
0 1 0 0
'b' = 'abcd'
0 1 0 0
'bc' ([: +/=/&,) 'abcd'
0 1 1 0
+./"2 'bc' =/ 'abcd'
0 1 1 0
Linda
-Original Message-
From: programming-boun...@forums.jsoftware.com
[mailto:programming-boun...@forums.jsoftware.com] On Behalf Of bob therriault
Sent: Fr
Yes packages are fixed at the 2nd level, but my understanding is that
the ability to load scripts from those packages located at levels
below that is intended behaviour. eg:
load 'math/deoptim/demo/eg_deoptim'
If it turns out that is not intended, then I second Ian's request!
On Fri, Sep 7, 20
Oh dear.
Can I request its promotion to a feature?
On Fri, Sep 7, 2012 at 3:41 AM, bill lam wrote:
> As I understand it, the short hand load'foo/bar' is intended to load
> an addon package, and a package is fixed at the 2nd level of the
> folder tree under ~addons. If it can work with other var
By the way, if you use getDEoptim instead of deoptim the output is as
a table with labels in the first column and maybe easier to interpret
i.e.
getDEoptim 'ssq_base_'; _3 3
On Fri, Sep 7, 2012 at 8:43 PM, Ric Sherlock wrote:
> Yes Mike has got you going. If you haven't already I'd recommend
>
Since
;: b._1
}:@;@(,&' '&.>"1) :.;:
and (' '&joinstring) compared to (;:^:_1) is not only 20% faster but is
also 4 times as lean, (;:b._1) better can be
redefined.
R.E. Boss
> -Oorspronkelijk bericht-
> Van: programming-boun...@forums.jsoftware.com
> [mailto:programmin
Yes Mike has got you going. If you haven't already I'd recommend
looking through the test script which I've fixed the link to on the
wiki page for the addon. It has some simple examples there.
http://www.jsoftware.com/jwiki/Addons/math/deoptim
Glad to see that someone else has use for this.
I su
New to me but I've just had a look, in J602.
As you said, there seem to be a number of issues:
1) your provided function needs to return a scalar result.
(+/@*:) 2 3
4 9
(+/@:*:) 2 3
13
So ssq should be +/@:*:
2) The locale for deoptim starts as pdeoptim
One way round appears to be to d
You are right. My numbers were copied and pasted from my J session, but I
guess events outside of J influenced them and made them meaningless.
On Fri, Sep 7, 2012 at 12:17 AM, Ric Sherlock wrote:
> None of these versions seem to provide much (any?) benefit over and
> above the joinstring verb
Did you happen to notice David's use of the word "pages" at the end of his
message? It makes a great visual image to explain the array.
I was wondering if it has been used in this context before, or does it have
a long and checkered APL or J history?
Linda
-Original Message-
From: prog
None of these versions seem to provide much (any?) benefit over and
above the joinstring verb from strings.
timespacex 'b2o x'
0.145468 4.1748e7
timespacex 'b2q x'
0.145305 4.1748e7
timespacex 'SP joinstring x'
0.143562 4.17485e7
When we inspect joinstring the reason becomes clear ... th
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