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Thanks for the discussion.... very interesting.
As a naive programmer I have been wondering about a few things.
It seems my gut instincts are pretty close:
- people with prior programming experience have an advantage overall
(they can put AFl into perspective and find strengths and weaknesses
I can't even begin to imagine)
- they do seem to trip over array processing though (that part seems
easy to me)
- don't bother learning other languages
- AFL is a full language, albeit one with limited application i.e. it
is only for trading app (I suppose we could call it a fully blown
trading language).
- further enhancement of AFL is the desired goal
- AFL and AB have some quirky aspects to them (only fathomed by
persistent digging or the good graces of AB friends)
Now wouldn't you say that a full blown language deserves a full blown
manual and that we shouldn't have to fall in the potholes to know
they are there...... I will take razbarries point that other
languages are worse (head scratching and potholes are the norm when
programming?).
Something about AB/AFL makes me cranky ... can't quite put my finger
on what it is .... perhaps I just have my ideals set too high (is
that possible?)..... or maybe I am prone to crankiness.
I am definitely cranky that Tomasz won't give us a Wiki .... every
body else has them .... surely we are grown up enough to manage
one ... that would provide us with a vehicle to write a collective
book/manual.
On the other hand ... any of you guys up to an advanced AFL book ...
Barry (looks like you could go close)?
Maybe it is all a dream ... in the real world I will just have to
keep plodding along, tapping with my white cane, falling in potholes
and skinning my knees?
brian_z
--- In amibroker@xxxxxxxxxxxxxxx, Dennis Brown <see3d@xxx> wrote:
>
> Guys,
>
> I have just written one simple DLL. I did it only because I had to
to
> gain some AFL functionality that was not available any other way.
I
> think that is the only reason I would write a DLL again. I would
> prefer that AFL get enhanced instead to not require it at all.
>
> BR,
> Dennis
>
>
> On Dec 2, 2008, at 3:20 PM, sidhartha70 wrote:
>
> > I have found that there a number if tricks & tips to making AFL
code
> > run as fast as possible on AB... partly to do with AFL itself and
> > partly to with peculiarities of AB... It's taken trial and error
> > frankly to work them out...
> >
> > But I'm now much clearer about how to AB in an efficient manner...
> > such that pervious code that I found almost unusably slow is now
> > pretty fast.
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Ara Kaloustian" <ara1@> wrote:
> >>
> >> Barry,
> >>
> >> I agree on most issues ... have experienced the hardship of
thinking
> > arrays
> >> ... has cost me a lot of time...
> >>
> >> Fortunatley (I think) I have lost the limited C programming I
could
> > do ...
> >> actually I used turbo Pascal because it was less forgiving than
C /
> > C++ ...
> >> I know C++ had improved a lot since .. the old days... so I
don't
> >> even
> >> consider a DLL task now.
> >>
> >> The advantages I see for a DLL (other than hiding your code) is
to
> > group
> >> common routines AND faster execution under some conditions. I
have
> > some very
> >> slow code that becomes unusable in real time...
> >>
> >> Have a great day
> >>
> >> Ara
> >>
> >>
> >> ----- Original Message -----
> >> From: "Barry Scarborough" <razzbarry@>
> >> To: <amibroker@xxxxxxxxxxxxxxx>
> >> Sent: Tuesday, December 02, 2008 11:33 AM
> >> Subject: [amibroker] Re: Why are there so few?
> >>
> >>
> >>> Hi Ara,
> >>>
> >>> I will have to disagree about AFL vs C++. They are about the
same
> >>> difficulty to learn. AFLs use of arrays threw me for a loop
for
> >>> about
> >>> a year. I kept trying to code it like C. Bad idea. Don't! The
C++
> >>> compiler is much less forgiving and you have to have the code
> >>> perfect
> >>> before the compiler will let it pass. That is a good thing
because
> >>> AFL allows syntax error to pass that only surface at run time
and
> >>> they are a BEAR to figure out. But then C++ has linking and run
time
> >>> errors that are a BEAR to figure out too. And you are much more
> >>> likely to get help with coding here if you use AFL.
> >>>
> >>> I think the best thing to do is read the AFL manual over and
over
> >>> until you understand it. Then read it again. But realize you
would
> >>> have to do that with C++ too. If you think the AFL manual is
hard to
> >>> understand pick up a Visual C++ manual, 4 CD library, and try to
> >>> learn it. Good luck! And I am not talking about using the full
blown
> >>> object oriented aspects of C++, which are much harder to grasp
and
> >>> use and not needed in a DLL. OE is mainly for creating
functions
> >>> that
> >>> can be used over and over with standard interfaces and you can
do
> >>> that with functions in AFL and put them in an include library.
> >>>
> >>> The main reason for DLLs is hiding your design. Once you
compile
> >>> them
> >>> they are in machine language and unreadable. So your design
would
> >>> remain a secret. DLLs would be good if you were writing
application
> >>> level AmiBroker programs to sell where you would have a number
of
> >>> applications with common function. Using common function lowers
> >>> maintenance and improves productivity. That is where OE shines.
> >>>
> >>> Learn AFL. Forget DLLs unless you really need them.
> >>>
> >>> Cheers,
> >>> Barry
> >>>
> >>> --- In amibroker@xxxxxxxxxxxxxxx, "Ara Kaloustian" <ara1@>
wrote:
> >>>>
> >>>> yes ... you need to be able to program in C++ (or similar)
> >>>> language.
> >>>>
> >>>> AFL is considered a user larguage .. that's why it's
relatively
> >>>> easy
> >>>>
> >>>> C++ on the other hand is a full programming language
> >>>>
> >>>>
> >>>> ----- Original Message -----
> >>>> From: "Tim" <raven4ns@>
> >>>> To: <amibroker@xxxxxxxxxxxxxxx>
> >>>> Sent: Tuesday, December 02, 2008 10:37 AM
> >>>> Subject: [amibroker] Why are there so few?
> >>>>
> >>>>
> >>>>> Hello,
> >>>>> Many people have said that a DLL is the way to go for a
formula.
> >>> It
> >>>>> is said it is faster among other positives. Why then is there
so
> >>> few
> >>>>> DLL's available? I know my ignorance about computers is
showing
> >>> but I
> >>>>> would really like to know. Are they more complicated than an
AFL,
> >>> you
> >>>>> need special training, what? Thank you for indulging my
curiosity.
> >>>>>
> >>>>> Kindest regards always,
> >>>>>
> >>>>> Tim
> >>>>>
> >>>>>
> >>>>> ------------------------------------
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