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Bollinger Band Squeeze for Amibroker (AFL)

Rating:
4 / 5 (Votes 2)
Tags:
amibroker, bands

It is squeeze when the BBandWidth narrows.

Screenshots

Indicator / Formula

Copy & Paste Friendly
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// BB MODEL AMIBROKER
/*
_SECTION_BEGIN("Bollinger Bands");
P = ParamField("Price field",-1);
Periods = Param("Periods", 15, 2, 300, 1 );
Width = Param("Width", 2, 0, 10, 0.05 );
Color = ParamColor("Color", colorCycle );
Style = ParamStyle("Style");
Plot( BBandTop( P, Periods, Width ), "BBTop" + _PARAM_VALUES(), Color, Style ); 
Plot( BBandBot( P, Periods, Width ), "BBBot" + _PARAM_VALUES(), Color, Style ); 

PlotOHLC( bbt, bbt, bbb, bbb, "", ColorBlend( Color, GetChartBkColor(), 0.8 ), 
          styleNoLabel | styleCloud | styleNoRescale, Null, Null, Null, -1 ); // MODEL CLOUD
_SECTION_END();
*/

//-------------------------------------------------------------------------------------------------------------------------------------------------------------

// BBAB

_SECTION_BEGIN("Bollinger Bands");
P = ParamField("Price field",-1);
BBper = Param("BBper", 15, 2, 300, 1 );
StDevNr = Param("StDevNr", 2, 0, 10, 0.05 );
Color = ParamColor("Color", colorRed );
Style = ParamStyle("Style", styleDots + styleThick );

bbt = BBandTop( P, BBper, StDevNr ) ;
cupbbt = C>bbt ;
bbtup = bbt>Ref(bbt,-1) ;
bbtcol = IIf(bbtup, colorRed, colorPink) ;
bbb = BBandBot( P, BBper, StDevNr ) ;
bbbup = bbb>Ref(bbb,-1) ;
bbbcol = IIf(bbbup, colorRed, colorPink) ;
bbmid = (bbt + bbb)/2 ;
cupbbmid = C>bbmid ;
bbmidup = bbmid>Ref(bbmid,-1) ;
bbmidcol = IIf(bbmidup, colorBlue, colorAqua) ;

BBWidth = bbt - bbb ;

issqueeze = bbwidth<Ref(bbwidth,-1) ;
isexpand = bbwidth>Ref(bbwidth,-1) ;

bbupcond = cupbbmid AND bbmidup AND bbtup OR cupbbt ;
bbdncond = !cupbbmid ;

Plot( bbmid, "\nBBMid" + _PARAM_VALUES(), bbmidcol, Style ); 
Plot( bbt, "\nBBTop" + _PARAM_VALUES(), bbtcol, Style ); 
Plot( bbb, "\nBBBot" + _PARAM_VALUES(), bbbcol, Style ); 
_SECTION_END();

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//PRICE

_SECTION_BEGIN("Price");
SetChartOptions(0,chartShowArrows|chartShowDates);
_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%)Vol " +
            WriteVal( V, 1.0 ) + " {{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 )) ));
Plot( C, "", ParamColor("Color", colorBlack ), styleNoTitle | ParamStyle("Style") | GetPriceStyle() ); 

//barcolorc= IIf(C>O AND C>Ref(C,-1), colorBlue,
//           IIf(C<O AND C<Ref(C,-1), colorRed, colorTan)); //MODEL MODEL MODEL 3 CULORI
//SetBarFillColor( IIf(C>O AND C>Ref(C,-1), colorBrightGreen,
//                 IIf(C<O AND C<Ref(C,-1), colorOrange, colorTan))); //MODEL MODEL MODEL 3 CULORI
//Plot( C, "", barcolorc, styleNoTitle | ParamStyle("Style") | GetPriceStyle() ); 
//Plot( C, "", barcolorc, styleBar+styleThick );
_SECTION_END();

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// BB SQUEEZE CLOUD

issqueezecol = IIf(issqueeze, colorGold, colorWhite) ;

PlotOHLC( bbt, bbt, bbb, bbb, "", issqueezecol, styleNoLabel | styleCloud | styleNoRescale, Null, Null, Null, -1 ); // MODEL CLOUD
          
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