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Hi
Thanks for your modified afl.
But one change in your afl, then i'm getting result what i expected.
The below syntax in your afl :
bbbcolor = IIf( BBB < Ref (BBB, -1), colorGreen,colorRed );
changed to :
bbbcolor = IIf( BBB > Ref (BBB, -1), colorGreen,colorRed );
Have a good day....
Ajay
--- In amibroker@xxxxxxxxxxxxxxx, "ikodu.takana" <ikodu.takana@xxx> wrote:
>
> --- In amibroker@xxxxxxxxxxxxxxx, "tummalaajaybabu"
> <tummalaajaybabu@> wrote:
> >
> > Hi all
> >
> > Bollinger bands color change - generally the bands are in one color.
> > But i'm trying to write afl for the bands is - Assume Default color is
> > red. When the uptrend is born the upper band turns up in that case -
> > what happend in default color is the same red color is appearing when
> > the trend is at an end the band turns down again the same red color is
> > continue.
> >
> > I wish to change to the colors - when the upper band turns up the red
> > color is changed to green (or any) for quick visual interpretation the
> > trend is beginning. When the trend is at an end the bands change color
> > from green to red. like that bottom band also.
> >
> > _SECTION_BEGIN("Bollinger Bands");
> > P = ParamField("Price field",-1);
> > Periods = Param("Periods", 20, 2, 100, 1 );
> > Width = Param("Width", 2, 0, 10, 0.05 );
> > Color = ParamColor("Color", colorCycle );
> > Style = ParamStyle("Style");
> > color = IIf( BBandTop (P)> Ref (BBandTop(P), -1), colorCustom12,
> > colorRed );
> > /*color = IIf( BBandBot(p) < Ref (BBandBot(P), -1), colorGreen,
> > colorRed );*/
> > Plot( BBandTop( P, Periods, Width ), "BBTop" + _PARAM_VALUES(), Color,
> > styleThick );
> > Plot( BBandBot( P, Periods, Width ), "BBBot" + _PARAM_VALUES(), Color,
> > styleThick );
> >
> > This is the formula i have tried. But i'm facing one problem. When the
> > upper band turns up the color is chaning. At the same time the lower
> > band also turning up but the color is not changing (if the color
> > changed abruptly it will appearing in red color at an uptrend in the
> > middle of the line again it will change to green in the middle). So, i
> > have put (/*) mark in bbandbot syntax line. But no change. I have mark
> > the syntax line with (/*) but the the bottom band is also color
> > changing? I write color condition to bband top only but i'm getting
> > the same colors at bottom band too?
> >
> > Can any one look into the afl and suggest me what to do?
> >
> > Thank you....
> >
> > Ajay
> >
>
>
> hi, I am a novice in AFL language but you can try this :
>
>
>
> _SECTION_BEGIN("ColoredBBands");
> P = ParamField("Price field",-1);
> Style = ParamStyle("Style") | styleNoRescale | styleNoLabel |
styleDashed;
>
> BBT=BBandTop(P,10,2);
> BBB=BBandBot(P,10,2);
>
> bbtcolor = IIf( BBT> Ref (BBT, -1), colorYellow,colorRed );
>
> bbbcolor = IIf( BBB < Ref (BBB, -1), colorGreen,colorRed );
>
> Plot( BBT, "BBTop" + _PARAM_VALUES(), bbtcolor, Style );
> Plot( BBB, "BBBot" + _PARAM_VALUES(), bbbcolor, Style );
>
> _SECTION_END();
>
>
> Hope that would solve your problem.
>
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