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ZWZ, thanks for your suggestion. For now I'll stick with the code
based on plot statements. It's probably faster than the script based
code. I fine-tuned the formula a little bit and it's all what I need:
/*********************************/
LongSignal = C > ( LLV( L, 20 ) + 2 * ATR( 10 ) );
ShortSignal = C < ( HHV( H, 20 ) - 2 * ATR( 10 ) );
DynamicColour = IIf( LongSignal AND ShortSignal, colorYellow, IIf(
LongSignal, colorLime, IIf( ShortSignal, colorRed, colorGrey50 )));
TrailStopLong = HHV( C - 2 * ATR(10), 15 );
TargetLong = EMA( H, 13 ) + 2 * ATR(10);
TrailStopShort = LLV( C + 2 * ATR(10), 15 );
TargetShort = EMA( L, 13 ) - 2 * ATR(10);
/* plot chart and stops */
Title = Name()+" \\c11"+Interval(format=2)+" "+Date()+"\\c-1 C="+C;
/* white background: 55, black background: 16 */
Plot(TargetLong, "", IIf(LongSignal AND ShortSignal, 55,
IIf(LongSignal, 26, 55)), 512 );
Plot(TargetShort, "", IIf(ShortSignal AND LongSignal, 55,
IIf(ShortSignal, 26, 55)), 512 );
Plot(TrailStopLong, "", IIf(LongSignal AND ShortSignal, 55,
IIf(LongSignal, 38, 55)), 512 );
Plot(TrailStopShort, "", IIf(ShortSignal AND LongSignal, 55,
IIf(ShortSignal, 53, 55)), 512 );
Plot( Close, "", DynamicColour, 64 );
SetChartOptions(0, chartShowDates);
/*********************************/
--- In amibroker@xxxxxxxxxxxxxxx, "zwz21766" <zwzhang@xxxx> wrote:
>
> hi,
>
> After looking at how SAR is plotted:
> Plot( SAR( acc, accm ), _DEFAULT_NAME(), ParamColor( "Color",
> colorCycle ), ParamStyle("Style", styleDots | styleNoLine,
maskDefault
> | styleDots | styleNoLine ) );
>
> I find the algorism is not implemented using the Plot function, it
is
> in the SAR function. So my suggestion is:
>
> A function, let's call it MyStop:
>
> //pls refer to AFL syntax, I am a newbe
> function (return type) MyStop(...){
> ...
> if(LongSignal){
> stpValue=[calculate long stop value];
> }
> else{
> stpValue=[calculate short stop value];
> }
> return stpValue;
> }
>
> Then plotting is simple and easy:
> Plot( MyStop(...), ...);
> //Note here: Just as SAR, plot it as dots, not line. If line, looks
> too strange.
>
> zwz
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