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Re: [amibroker] Mutually Exclusive -- Traders/Programmers [Was #define directive ?]

To: <amibroker@xxxxxxxxxxxxxxx>
Subject: Re: [amibroker] Mutually Exclusive -- Traders/Programmers [Was #define directive ?]
From: "Tomasz Janeczko" <amibroker@xxxxxx>
Date: Mon, 19 May 2003 12:12:26 -0700
In-reply-to: <20030519185910.66192.qmail@xxxxxxxxxxxxxxxxxxxxxxx>
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Salil,

I fully agree. There are few ... :-)

Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "Salil V Gangal" <salil_gangal@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Monday, May 19, 2003 8:59 PM
Subject: [amibroker] Mutually Exclusive -- Traders/Programmers [Was #define directive ?]


> Tomasz,
>
>     >>The general principle is that AmiBroker is for TRADERS not for programmers.<<
>
> Err ... Is being a Trader and being a Programmer mutually exclusive ?  *smile*
>
> Perhaps there are a few programmers who are traders and a few traders who are
> programmers (No ?).
>
> Regards,
> - Salil V Gangal
>
>
> --- Tomasz Janeczko <amibroker@xxxxxx> wrote:
> > Hello,
> >
> > The general principle is that AmiBroker is for TRADERS
> > not for programmers. Therefore the rule is to keep the number language
> > contructs LOW so everybody can actually understand and use AFL.
> >
> > The framework available now (with looping and user-definable functions)
> > is 100% enough to write sophisticated trading systems/indicators/commentaries.
> > And this is what AFL is for.
> >
> > Hard core programmers are invited to use ADK to expand in anyway
> > their like but I have no intentions to make AFL so complex that
> > average user would have troubles understanding it.
> >
> > Let's keep it simple.
> >
> > Best regards,
> > Tomasz Janeczko
> > amibroker.com
> > ----- Original Message -----
> > From: "Graham" <gkavanagh@xxxxxxxxxxxxx>
> > To: <amibroker@xxxxxxxxxxxxxxx>
> > Sent: Monday, May 19, 2003 7:03 AM
> > Subject: RE: [amibroker] #define directive ?
> >
> >
> > Thanks Salil, but it seems over my head for what seems a simple exercise. I
> > will leave it to those with a fuller understanding of programming.
> >
> > Cheers,
> > Graham
> > http://groups.msn.com/ASXShareTrading
> > http://groups.msn.com/FMSAustralia
> > -----Original Message-----
> > From: Salil V Gangal [mailto:salil_gangal@xxxxxxxxx]
> > Sent: Monday, 19 May 2003 12:20 PM
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: RE: [amibroker] #define directive ?
> >
> > Graham,
> >
> > Perhaps you are. You are considering the example I have quite literally.
> > Following link gives more information about the #define.
> > http://www-ccs.ucsd.edu/c/preproc.html#Define%20Directives
> >
> > As you'll notice, one can use #define directive in a more flexible manner to
> > cut down typing. The 45ema example I gave is just a trivial example.
> >
> > Regards,
> > - Salil V Gangal
> >
> >
> >
> >
> > Graham <gkavanagh@xxxxxxxxxxxxx> wrote:
> > I may be missing your objective, but can&#x2019;t you already do that in AFL
> > Then you just need to call it up. I have called it EmaExp which just needs
> > to be referenced where you want
> >
> > Example
> >
> > security = C;
> > security45ema = EMA(C,45);
> > EmaExp = WriteIf ( LastValue(security) > LastValue(security45ema), "Price is
> > above it 45 ema","Price is not above 45 ema");
> >
> > Filter=1;
> > AddTextColumn(EMAexp,"exp");
> >
> >
> > Cheers,
> > Graham
> > http://groups.msn.com/ASXShareTrading
> > http://groups.msn.com/FMSAustralia
> > -----Original Message-----
> > From: Salil V Gangal [mailto:salil_gangal@xxxxxxxxx]
> > Sent: Monday, 19 May 2003 11:51 AM
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: RE: [amibroker] #define directive ?
> >
> > Graham,
> >
> > The #define directive allows one to write in short-hand rather than writing
> > long code. The compiler substiututes the short-hand into its full form
> > before executing it.
> >
> > As an example, say if one is writing the following again and again and again
> > in the program ==>
> >
> > WriteIf ( LastValue(security) > LastValue(security45ema), "Price is above it
> > 45 ema","Price is not above 45 ema");
> >
> > Then one can just define the short-hand
> >
> > #define WRITE45_EMA WriteIf ( LastValue(security) >
> > LastValue(security45ema), "Price is above it 45 ema","Price is not above 45
> > ema");
> >
> > And the within the program then one needs to write just WRITE45_EMA which
> > will mean writing whole of 'WriteIf ( LastValue(security) >
> > LastValue(security45ema), "Price is above it 45 ema","Price is not above 45
> > ema");' !
> >
> > This comes in very handy when one has very large code. It cuts down typing
> > a lot. Languages like C, C++ support #define. Since AFL already supports
> > #include, which is similar to C, C++, I am wondering if there is plan to add
> > #define for AFL also ...
> >
> > Regards,
> > - Salil V Gangal
> >
> > Graham <gkavanagh@xxxxxxxxxxxxx> wrote:
> > What is #define represent ?
> >
> > Cheers,
> > Graham
> > http://groups.msn.com/ASXShareTrading
> > http://groups.msn.com/FMSAustralia
> > -----Original Message-----
> > From: Salil V Gangal [mailto:salil_gangal@xxxxxxxxx]
> > Sent: Monday, 19 May 2003 9:40 AM
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: [amibroker] #define directive ?
> >
> > Tomasz,
> >
> > There is #include in AFL, but AFAIK there is no #define in AFL.
> >
> > Are there any plans to add #define as well ? With ever increasing length of
> > AFL scripts, I'm sure that #define will cut-down lot of typing while writing
> > AFL scripts.
> >
> >
> > Friends,
> >
> > Are there any work-arounds for #define in AFL ?
> >
> > Regards,
> > - Salil V Gangal
> >
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> >
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> >
>
>
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References:
- [amibroker] Mutually Exclusive -- Traders/Programmers [Was #define directive ?]
  - From: Salil V Gangal
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