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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’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
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-----Original Message-----From: Salil V Gangal [mailto:salil_gangal@xxxxxxxxx] Sent: Monday, 19 May 2003 11:51 AMTo: amibroker@xxxxxxxxxxxxxxxSubject: 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
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-----Original Message-----From: Salil V Gangal [mailto:salil_gangal@xxxxxxxxx] Sent: Monday, 19 May 2003 9:40 AMTo: amibroker@xxxxxxxxxxxxxxxSubject: [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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