Re: [Jprogramming] Qt websockets and doevents

2014-02-22 Thread bill lam
sendb now fixed. Timer and Qtwebsocket are part of jqt. If jqt is running, wd should be available. If jqt is not running, everything depending on jqt will not work. You may try start jhs on a jqt session. (untested) -- regards, GPG key 1024

Re: [Jprogramming] simple time series (lag)

2014-02-22 Thread R.E. Boss
%/ 1.25 1 (4 : 'x+"0 1 i.y') 4 1.25 1.125 1.083 1.0625 for a given array do %~/ ([\~-@-:@#) (1+(i.4)),(1.25+(i.4)) 1.25 1.125 1.083 1.0625 R.E. Boss (Add your info to http://www.jsoftware.com/jwiki/Community/Demographics ) > -Original Message- > From: program

[Jprogramming] algotrade and backtest platform

2014-02-22 Thread Y-01
Hi, Jers I have a suggestion: lets write a robot with necessary industry for algotrading. Reasons are next: 0. Knowledge = strength. Strength is in the truth. And all truth in algotrade practise. ... Ok, it was a joke. 1. J practise; 2. interesting task; 3. the effect of social reinforcement

Re: [Jprogramming] J in 5 minutes

2014-02-22 Thread Pascal Jasmin
I can definitely be wrong about this, but I thought my example was both a simple concept, but still daunting to code.  Its about the beauty/power of J for people who already understand daily interest loans, which I admit I may overestimate how widespread that knowledge is, or how a single senten

Re: [Jprogramming] J in 5 minutes

2014-02-22 Thread Don Guinn
There are so many "what ifs" in investing, managing a home and family. At least J makes it a lot easier to try different strategies. On Sat, Feb 22, 2014 at 12:08 AM, Björn Helgason wrote: > Talking about present value or getting a promise of something in the > future. > > It is not just intere

Re: [Jprogramming] Qt websockets and doevents

2014-02-22 Thread Pascal Jasmin
Thank you.  Is this an update that will be available through pacman? I understand that latest version of QT supports iOS.  Is jQT more likely to ever be implemented on iOS than JHS? - Original Message - From: bill lam To: programm...@jsoftware.com Cc: Sent: Saturday, February 22, 2014

Re: [Jprogramming] J in 5 minutes

2014-02-22 Thread Björn Helgason
One of the issues I have with J recent years is dropping the excelent wd from J6. I loved how easy it was to create screens etc. Dropping it for an uncertain future was a really bold move. I did not like it much but went with the flow. I do like JHS and all the new things it brings. Now the ne

Re: [Jprogramming] Qt websockets and doevents

2014-02-22 Thread bill lam
will be through install'jqt'. No idea if jhs or jqt will ever be available on iOS. Restriction of appstore. Сб, 22 фев 2014, Pascal Jasmin писал(а): > Thank you.  Is this an update that will be available through pacman? > > I understand that latest version of QT supports iOS.  Is jQT more likely

Re: [Jprogramming] J in 5 minutes

2014-02-22 Thread Raul Miller
Talking about issues (as opposed to coding itself) probably belongs in chat forum, not programming. We should try to make sure that programming forum messages always includes some J expressions. And not just "sarcastic" expressions like =i.9 Ideally, in programming forum, we should also try to i

Re: [Jprogramming] J in 5 minutes

2014-02-22 Thread bill lam
Old OpengGL (1.x) is still supported on J8 if viedo card OpenGL driver is opengl 1.x or it provides compatibility profile. Some minor code modification is needed, please see jwiki and various opengl demos in qt demo and wd demo. OTOH webgl must use shader language IIRC. Сб, 22 фев 2014, Raul

Re: [Jprogramming] algotrade and backtest platform

2014-02-22 Thread Brian Schott
I am not familiar with algotrade nor backtest. Could you supply references, please? Also, in what context are you suggesting this? As a way to attract new users, for example? On Sat, Feb 22, 2014 at 7:27 AM, Y-01 wrote: > Hi, Jers > > I have a suggestion: lets write a robot with necessary indu

Re: [Jprogramming] J in 5 minutes

2014-02-22 Thread Raul Miller
Yes, exactly. -- Raul On Sat, Feb 22, 2014 at 11:08 AM, bill lam wrote: > Old OpengGL (1.x) is still supported on J8 if viedo card OpenGL driver > is opengl 1.x or it provides compatibility profile. Some minor code > modification is needed, please see jwiki and various opengl demos in > qt dem

Re: [Jprogramming] J in 5 minutes

2014-02-22 Thread Brian Schott
Pascal, I can't remember the sequence of emails, but I do remember asking in a relevant thread if anyone had found a way to make a grid into active cells accepting excel-like formulae, with the idea that many people would find the transition to J easier if that were possible. And if memory serves

Re: [Jprogramming] algotrade and backtest platform

2014-02-22 Thread Dan Bron
In the electronically-traded capital markets, algorithmic trading programs take price feeds as input and produce orders as output - the idea being they'll analyze the price feeds, make predictions, and capitalize on those predictions by executing orders. One often designs or trains algo trading p

Re: [Jprogramming] J in 5 minutes

2014-02-22 Thread Pascal Jasmin
I think Henry mentioned that the demo should not be about teaching/explaining J, but rather doing cool stuff.  In that sense, its ok if it looks like line noise to a new user (though it should be absorbable if they go back to it after a tutorial), as long as the inputs and outputs are explained