I’d guess is that by “unstable” he meant “currently being modified".
In any case, thanks for the link Jose (what should I call you? Pepe?).
If there was one thing I could add to J it would be better support for
first-class verbs (arrays of verbs, passing verbs as arguments), if only
for the beauty
Catching up with mail, my use case for multiple assignment is to handle
command line arguments for which I've invented a few solutions.
Date: Tue, 4 Jul 2017 01:40:52 -0400
From: HenryRich
To: Programming forum
Subject: [Jprogramming] Request for comments: multiple assignment
Message-ID:<75b95
Unstable? If you have a bug in J8.06, please post it at
http://code.jsoftware.com/wiki/System/Interpreter/Bugs
I don't see any bugs that are new in 8.06, and plenty that are fixed
from previous versions.
Henry Rich
On 7/17/2017 7:06 PM, Jose Mario Quintana wrote:
Louis, a Jx interpreter im
examples in qt demo > edit demo.
On Jul 15, 2017 1:20 AM, "HenryRich" wrote:
> Oops, blunder my me, all is OK with validation.
>
> Henry Rich
>
> On 7/14/2017 1:01 PM, HenryRich wrote:
>
>> The description of the edit control at
>>
>> http://code.jsoftware.com/wiki/Guides/Window_Driver/ChildClas
IIRC plot penstyle is not implemented using gl2 penstyle command. Those
dash and dot are simulated using line segments.
On Jul 17, 2017 9:13 PM, "Rudolf Sykora" wrote:
> Hello,
>
> changing penstyle in a plot, I found it does not do the expected:
>
> ---
> load 'plot numeric'
>
> nst
Given is=:1 :'(m)=:y'
if we claim that ('abc' is) is not a "pure tacit verb" because it
contains a non-tacit adverb, that logic would suggest that +/ is not a
pure tacit verb because it contains an adverb. We can certainly say
that +/ is a tacit verb, but it's not purely made of pure tacit
verbs..
Louis, a Jx interpreter implements extensions to the language. It supports
tacit programming full-heartedly and embraces first-class verbs. There are
publicly available patches for Jx extensions, as well as, a pre-built 32
bit Windows dll and Pre-built 32 and 64 bit Linux libs at
http://www.2bes
Roger, at the address I mentioned (
http://www.2bestsystems.com/foundation/j/jx0/index.html ) you can find a
link to the article J Functional Programming Extensions that you might find
interesting. (There is also a J Cheatsheet.)
On Mon, Jul 17, 2017 at 10:19 AM, roger stokes
wrote:
> Louis, I
Exactly, you might have the right to say,
"
And yet, all of your verbs can be pure tacit.
For example, you could use
is=:1 :'(m)=:y'
"
but the verb,
I_am_a_pure_tacit_verb=: '`u v' is
fails,
I_am_a_pure_tacit_verb +/`*:
|domain error: I_am_a_pure_tacit_verb
| (m)=:y
because "
There is no obvious workaround, so you might have to accept the current
behaviour.
The code needs fixing by someone reasonably familiar with J. I probably
don't have time in the next few days, but perhaps someone else on the forum
can jump in.
On Mon, Jul 17, 2017 at 8:24 AM, Rudolf Sykora
wrote
Plot just recycles colors as needed. You can reset the item colors anytime,
but the colors are indexed by the current data item so this is not what you
want. I don't think there is a built-in way to override this.
However, the function that indexes the colors is just:
getitemcolor_jzplot_
3 :
We'll be here when you need.
Thanks,
--
Raul
On Mon, Jul 17, 2017 at 9:28 AM, Arie van Wingerden wrote:
> Hi David, Raul and Devon,
> thx. for answering this!
> I'll try to convert bits of Python and see how well that will go.
> Thx.
> /Arie
>
> 2017-07-16 16:57 GMT+02:00 Devon McCormick :
>
On 17 July 2017 at 16:42, chris burke wrote:
>> Should this behave this way?
>
> No, it really should not. However, the line pattern calculation is based on
> numbers of points, so it will shrink the step size as the number of points
> increases, see linepattern in
> jsoftware.com/websvn/wsvn/publ
On 17 July 2017 at 16:42, Tom Arneson wrote:
> To get just 4 colors, redefine STDCLR
>
> STDCLR_jzplot_=: 4{. STDCLR_jzplot_
Say I do not know in advance how many graphs will be there.
(I know I can always count them, but...)
Say the number of plotted lines in the 1st and 2nd group (see below)
> Should this behave this way?
No, it really should not. However, the line pattern calculation is based on
numbers of points, so it will shrink the step size as the number of points
increases, see linepattern in
jsoftware.com/websvn/wsvn/public/trunk/graphics/plot/source/base/util/putil.ijs
.
On
STDCLR_jzplot_
0 0 255
255 0 0
0 128 0
128 0 128
255 0 255
128 128 0
0 128 128
255 255 0
210 180 140
0 255 255
165 42 42
128 128 128
To get just 4 colors, redefine STDCLR
STDCLR_jzplot_=: 4{. STDCLR_jzplot_
Sent from Mail for Windows 10
From: Rudolf Sykora
Sent: Monday, July 17, 2017 09:33
To:
> Do you have an example where colors are not reused?
I mean reuse = restart, i.e. not necessarily cycle (though possibly also).
Example:
-
load 'plot'
pd 'reset'
pd 'type line'
pd i.3
NB.
pd 3+i.3
pd 'show'
-
The question is: what should I write at the place, so that
the sec
Plot should automatically reuse colors. For example STDCLR has 12 entries,
so the following will show the first few colors being reused:
load 'plot'
plot i.15 5
Do you have an example where colors are not reused?
On Mon, Jul 17, 2017 at 6:28 AM, Rudolf Sykora
wrote:
> Hello,
>
> when
Louis, I am with you on this.
Pepe, I would be very interested to see some introductory documentation
of your project
Regards
Roger
On Mon, Jul 17, 2017 at 12:40 PM, Louis de Forcrand
wrote:
> A lot has been said on these forums about Jx and Unbox.
> They are unofficial J interpreters (
> Can I do that easily?
I tried to add:
pd 'itemcolor STDCLR_jwplot_'
at the place where I want to start over with colours,
but it doesn't help.
Thanks
Ruda
--
For information about J forums see http://www.jsoftware.com/forums.
Hello,
when plotting, the colours are by default taken from the STDCLR
list.
After plotting a few lines of a figure, I want to reuse the colours
from that list,
starting again from its beginning.
Can I do that easily?
Thanks
Ruda
-
Hi David, Raul and Devon,
thx. for answering this!
I'll try to convert bits of Python and see how well that will go.
Thx.
/Arie
2017-07-16 16:57 GMT+02:00 Devon McCormick :
> I use J all the time for basic data extraction, manipulation and analysis.
> A lot of this is documented on the wiki in th
Hello,
changing penstyle in a plot, I found it does not do the expected:
---
load 'plot numeric'
nsteps =. 50
xs =. steps _2 2, nsteps
pd 'reset'
pd 'type line'
pd 'penstyle 0'
pd xs
pd 'penstyle 1'
pd -xs
pd 'show'
---
If nsteps is 5, you can see the second line is d
A lot has been said on these forums about Jx and Unbox.
They are unofficial J interpreters (with extensions to the language), are they
not?
Are they publicly available? I couldn't find anything about them on Google
except older messages in the forum archives, but then again unfortunately this
la
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