Is this the right place to request a performance improvement in {::
when using it with mapped files?
Example:
require'jmf'
createjmf_jmf_'abcd';100e6
map_jmf_'abcd';'abcd'
abcd=.xyz=.1$a: NB. xyz is ordinary array
abcd =. (;:'this is the rule')1000}abcd
xyz =. (;:'this is the
I presume this is the best place to report the following, in case it
has not yet been reported.
When I use the Java implemented session manager front end, the Find
option (under Edit) doesnt behave properly.
After the first item has been found, selecting the same menu option
again behaves
Judging from the following the problem would appear to affect floating
point numbers and not than integers.
a=.100+i.5
b=.200+i.5
Q=.%/
a((Q f.)/.@:,:)b NB. integer
100 0.505 0.507463 0.509901 0.512315 204
a((Q )/.@:,:)b
100 0.505 0.507463 0.509901 0.512315 204
a((Q f.)/.@:,:)b +0.1
There is a problem when specifiying the sparse axis.
+p=.1$. 10 2
+q=. 1 13(3)}p
3 0 │ 1
3 1 │ 13
q-:p
0
+p=.1$. 10 2;0
+q=. 1 13(3)}p
3 │ 1 13
q-:p
0
+p=.1$. 10 2;1
+q=. 1 13(3)}p NB. this is wrong
q-:p
1
Regards
David
j601_64
j601/2006-11-17/17:05
The conversion routine 3!:4 only accepts scalar or vector arguments.
Would it be possible to extend it to behave in a similar way to #. and #:
The following is a model:
ic =: 3!:4
cnvt =: ( 3 : ' ($y)$_2[\ 1 ic ,y') :. ( 3 : '(}:$y)$_1 ic,y')
$ cnvt i.20 30 40
20 30 40 2
(-: ].cnvt )
Ah ha..
this is an interesting one
1a)
I noticed a while back that I could use the ..\.. (etc etc) notation
to move up and out of the the j602 directory to search where i wanted.
(Bjorn could have used . to extend beyond Project and User)
But I don't think this allows me to move away from the
Is the following the expected behaviour of using M.
data =: ( @ (?~)@?)1e5#10
A=: 5#5
B=: 5?5
foo_with_M =: 3 : 0 M.
n=:?1e5
data =:(:n{::aa)n}aa
n;n{::data
)
foo_with_M 0 B
|85156| |
+-+---+
|37421|3 2 1 5 4 |
+-+---+
|13050| |
On 10/27/07, Raul Miller [EMAIL PROTECTED] wrote:
On 10/27/07, david alis [EMAIL PROTECTED] wrote:
Note that you use a value 'aa' here, which you do not define in
your message.
Rephrasing the saying ...
cut in leasure, paste in haste - sorry about that..
data =: (?~?). 1e5#10
foo_with_M
looks as if 'appboot.ijs' needs to sit in the same directory as profile.ijs
On 11/3/07, Raul Miller [EMAIL PROTECTED] wrote:
I wrote:
'tmp=:usr' 1!:2 jpath '~bin/appboot.ijs'
Never mind, I needed to use =.
--
Raul
Is there a ReleaseHighlights for J7 ?
something like: system\extras\help\user\relhigh.htm
If only for the engine (i.e. language features, changes, etc).
Thanks
David
--
For information about J forums see
I downloaded and successfully installed j701, Win, 32bit on 14 dec.
i could install the gtkide and use the IDE.
I chose custom installation and the installation went into C:\j701
today i downloaded the newest version.
Before installing it I renamed my existing c:\j701-c:\j701xx
After the
i seldom use jconsole so i had to search forum to find what to do.
load'pacman'
'update' jpkg 'base library'
ide works okay now.
is that enough or is there more?
--
For information about J forums see
the edit|configure option in the new ide will be very difficult for a new user.
how do i change the default representation of expressions from box to
linear to tree ?
david
--
For information about J forums see
this bug is still present in J701
it was reported in March 2009.
http://www.jsoftware.com/pipermail/programming/2009-March/014233.html
u=.:i.3
u + 9x
10 11 12
u=. $.:i.3
u + 9
0 | 10
1 | 11
2 | 12
u + 9x
|syntax error
| u+9
(j701/beta/2010-11-24/22:45)
is there also a fix for this one?
a=.$.i.5
a+5x
|syntax error
| a+5
(same version, but on W7, 32bit)
David
On Mon, Jan 10, 2011 at 9:04 PM, Eric Iverson eric.b.iver...@gmail.comwrote:
I have a fix for this bug from Roger and it will be included in the next
set
of 701 installers.
Thanks
I downloaded the latest 701 for win32 (Windows7)
ran
load 'pacman'
'update' jpkg''
'install' jpkg'all'
then quit and started jpkg and got the following:
C:\j701\binC:\j701\bin\jconsole gtkide
|domain error: cd
| helper_g_locale_to_utf8_jgtk_'intl.dll gettext + x *c'cdy
david
Apologies if this already been dealt with.
I have copied the file j701a_linux64.sh to a linux server that has
absolutely no access to the internet.
How do
(1) I install the gtk based ide
(2) how would i install and keep current the various packages, addons?
Thanks
David
Thanks - simple and effective.
David
On Thu, Jan 13, 2011 at 7:10 PM, jerome fontaine
fontainejerome2...@gmail.com wrote:
fontainejerome2...@gmail.com
i have several partitions and use to copy the J directory, it is fast
think you have USB portable device
I try
rename my j701
unplug
The new interfaces JGTK and JHS are very good indeed.
JHS is an extraordinary achievement.
Congratulations and very well done.
David
--
For information about J forums see http://www.jsoftware.com/forums.htm
I'm running ubuntu 10.10, 64 bit with j701/2011-01-10/11:25
if the exit status of the command run by 2!:0 is non-zero then
JHS returns 'interface error' in the browser.
So running
files =: 2!:0'find / -name testfile 2/dev/null'
returns a result to JHS only if run as root.
Otherwise it's an
sockets are disallowed.
right?
On Thu, Jun 21, 2012 at 5:39 PM, Eric Iverson eric.b.iver...@gmail.com wrote:
Follow all the stuff from the ? button. Limited and a bit terse, but it
does cover everything.
Because J is so powerful, there is more than might first meet the eye.
Apple doesn't
perfect.
thanks
On Thu, Jun 21, 2012 at 5:54 PM, Eric Iverson eric.b.iver...@gmail.com wrote:
Try loading sockets and playing. But don't wave about as Apple could
disallow down the road.
On Thu, Jun 21, 2012 at 11:48 AM, david alis david.a...@gmail.com wrote:
sockets are disallowed.
right
i'm almost there ...
On my Win7 I ran (beware line breaks):
jt'c';'C:\Users\david\j64-602-user/test.jt';'C:\Users\david\j64-602\addons\';'games'
('C:\Users\david\j64-602-user/test2.html')jattach
'C:\Users\david\j64-602-user/test.jt'
(returns 131617 chars written).
mailed test2 to myself
Opened
Hi Brian
monadic jattach just uses the default file
name of '~temp/jattach.html'
What do you get when you list files in directories?
1!:0'j/addonns/games/*'
I'm having loads of fun reverse engineering my way
to figuring out how J works on iPad. But I wouldnt
mind a little bit of help. An
-│drwxr-xr-x│
└──┴─┴───┴───┴──┴──┘
1!:0'j602/addons/games/*'
1!:0'~/j602/addons/games/*'
On Sat, Jun 23, 2012 at 11:08 AM, david alis david.a...@gmail.com wrote:
Hi Brian
monadic jattach just uses the default file
name of '~temp/jattach.html'
What do
Brian
As you remarked earlier gtkwd.ijs is missing,
which is why the require fails at the beginning of pousse.ijs.
This doesn't fix your problem but at least explains it.
I suppose my problem lies elsewhere.
fyi, the ~ symbol is resolved in jpath.
Seems like definitions in stdlib.ijs and
I wasn't clear.
Functions like script need to tell people which files are missing
otherwise time gets wasted.
On Sun, Jun 24, 2012 at 9:34 AM, david alis david.a...@gmail.com wrote:
Brian
As you remarked earlier gtkwd.ijs is missing,
which is why the require fails at the beginning
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