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>Or when can you get away with doing what is actually array >arithmetic and when do you have to resort to loops.
I have spent the majority of my AFL programming time:
- writing arrays, and plotting them line by line (as arrays) in a chart (to test the code there)
- using Explorations to create reports (analysing my trading ideas and checking the efficacy of my code there)
- exporting from a report to Excel and continuing the analysis there, as well as creating charts in Excel to short cut the analytical process (a picture is worth a 1000 words)
The next step for me (probably) is to share my trading analysis between AB and R Project.
I am a little unusual though in that I almost never optimise or use out of the box indicators ..... if I did there is plenty of Opt mentors around, like Fred, and Tomasz has already written gigabytes of 'indicator' code.
> BTW, AFL is a very good language.
Yes, if we compare it to, say, Metastock (as you say what is the point comparing it to a GP programming language?) .... but if we compare it to the ideal i.e. what it could be, there is a long way to go before it is all 'on the board' requiring no more than a snip here and there to 'round off the shape'.
--- In amibroker@xxxxxxxxxxxxxxx, "Ed Hoopes" <reefbreak_sd@xxx> wrote:
>
> I recommend that you read several books on Technical Analysis first. This is so you can understand the types of things AFL is trying to accomplish.
>
> Contrary to a general purpose language like C, AFL is very purpose built (Yes (all you geeks) I know that C was originally developed to write the UNIX operating system, but it has evolved into a GP language C++.) If you have experience with a general purpose language, AFL seems rather strange, like the circumstances under which a variable is just assigned a number, and when a var is actually an array of numbers. Or when can you get away with doing what is actually array arithmetic and when do you have to resort to loops.
>
> All of these strange things make much more sense, if you have a general feeling for the things that TA'ers are trying to do.
>
> BTW, AFL is a very good language. If you don't think so look at MetaStock AFL with just ONE control statement - a non-block IF statement. Or eSignals modification of JavaScript - YIKES ! - I ported most of my indicators I wrote from eSig to AFL and the number of lines of code dropped by about a factor of 10 !
>
> Reef Break
>
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "louies88" <Louies88@> wrote:
> >
> > I think Amibroker is great, especially its AFL. Although I don't know enough about it to claim that it's superior than most other scripting languages out there, I know for a fact that this is one of the best. That also begs the question of how a person w/ virtually no programming background can get started w/ AFL. I followed this forum long enough to note that some of you in here are excellent coders. The codes that I often see are flawless and eloquent, which then makes me think how long does it take a coding newbie such as myself to attain that coding level.
> >
> > I look at it this way. Coding a computer language is pretty similar to learning a foreign language. I remember how my first English class went. I started out by learning a few basic vocabulary words, then use some of it in the form of a noun, then a verb, finally an object. Sentence structures, or in computer language better known as syntax, govern if a sentence is grammatically correct or if it's not. With that in mind, I also started out by looking at the AFL Library in Amibroker. I downloaded all of the functions in the hope of building myself an Amibroker vocabulary and started to put some of the basic vocabulary words together to make a "sentence."
> >
> > However, since there isn't any kind of document FORMALLY teaching the ABC of coding in Amibroker, I'm left w/ a question how does Amibroker syntax work? Some of the experienced coders here often compare AFL syntax to that of C++. But for a person w/ neither background in AFL or C++ or any other computer langugae, the question remains: How do I get start? Where's the square one?
> >
> > Anybody w/ such experience is highly appreciated if he/she's willing to shed a light on this.
> >
> >
> > Thanks
> >
>
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