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Start with this script from somebody on this forum.
SECTION_BEGIN("MACD");
/*Long entry = blue line crosses above green line
Long exit = after above green line, blue line crosses below green
line
Short entry = blue line crosses below red line
Short exit = after below red line, blue line crosses above green line
*/
A1=EMA(C,12)-EMA(C,26);
BBtop=BBandTop(A1,10,1);
BBbot=BBandBot(A1,10,1);
Plot(a1,"MACD",colorDarkBlue,styleThick);
Plot(BBtop,"BBtop",colorDarkGreen,styleThick|styleDashed);
Plot(BBbot,"BBbot",colorRed,styleThick|styleDashed);
Plot(0,"",colorBlack);
Buy= Cross(a1,BBtop) ;
Sell=Cross(BBtop,a1) ;
_SECTION_END();
--- In amibroker@xxxxxxxxxxxxxxx, "n7wyw" <dennisljohnston@xxx> wrote:
>
> Here is an eSignal script of MACD similar to the one contained in
> nexgen software that costs over $10,000 which is a bollinger band
> study on macd. What changes should I make to have this run in AB?
> Thanks for any suggestions.
>
> Dennis
>
>
> eSignal Formula Script --- Printed on: 12/1/2007, 11:14:53 PM ---
> Page 1
> 1 /*
> 2 MACD BB
> 3 Developed by David Laffineuse, December 2007
> 4 http://tradersguild.wordpress.com
> 5 trader2be@xxx
> 6 */
> 7
> 8 var gUpperBoll = null;
> 9 var gLowerBoll = null;
> 10 var gMACD = null;
> 11 var gTagID = null;
> 12
> 13 function preMain() {
> 14
> 15 setPriceStudy(false);
> 16 setStudyTitle("DL_MACD_BB");
> 17 setCursorLabelName("DL_MACD_UB",0);
> 18 setCursorLabelName("DL_MACD_LB",1);
> 19 setDefaultBarFgColor(Color.yellow,0);
> 20 setDefaultBarFgColor(Color.yellow,1);
> 21 setPlotType(PLOTTYPE_LINE,0);
> 22 setPlotType(PLOTTYPE_LINE,1);
> 23 setDefaultBarThickness(1,0);
> 24 setDefaultBarThickness(1,1);
> 25
> 26 fp1 = new FunctionParameter( "MACD_FL",
FunctionParameter.NUMBER);
> 27 with(fp1) {
> 28 setName("MACD Fast Length");
> 29 setDefault(12);
> 30 }
> 31 fp2 = new FunctionParameter( "MACD_SL",
FunctionParameter.NUMBER);
> 32 with(fp2) {
> 33 setName("MACD Slow Length");
> 34 setDefault(26);
> 35 }
> 36 fp3 = new FunctionParameter( "MACD_SM",
FunctionParameter.NUMBER);
> 37 with(fp3) {
> 38 setName("MACD Smoothing");
> 39 setDefault(9);
> 40 }
> 41 fp4 = new FunctionParameter( "Boll_Length",
> FunctionParameter.NUMBER);
> 42 with(fp4) {
> 43 setName("Bollinger Length");
> 44 setDefault(20);
> 45 }
> 46 fp5 = new FunctionParameter( "Boll_STD",
FunctionParameter.NUMBER);
> 47 with(fp5) {
> 48 setName("Bollinger Standard Deviation");
> 49 setDefault(2);
> 50 }
> 51
> 52 }
> 53
> 54 function main(MACD_FL,MACD_SL,MACD_SM,Boll_Length,Boll_STD){
> 55
> 56 var dblMACD = null; // MACD value @ current bar
> 57 var dblMACD_1 = null; // MACD value @ previous bar
> 58 var dblUpperBoll = null; // Upper BB value
> 59 var dblLowerBoll = null; // Lower BB value
> 60 var strBasisColor = null; // Basis color
> 61 var strCircleColor = null; // Circle Color
> 62
> 63 // Instantiations of studies (done once)
> 64
> 65 if (gMACD == null) {
> 66 gMACD = macd(MACD_FL,MACD_SL,MACD_SM);
> 67 gUpperBoll = upperBB(Boll_Length,Boll_STD,gMACD);
> 68 gLowerBoll = lowerBB(Boll_Length,Boll_STD,gMACD);
> 69 }
> 70
> 71 // Rounding required to enable proper white circle assessment
> 72 dblMACD = Math.round((gMACD.getValue(0))*10000)/10000;
> 73 dblMACD_1 = Math.round((gMACD.getValue(-1))*10000)/10000;
> 74 dblUpperBoll = Math.round((gUpperBoll.getValue(0))*10000)/10000;
> 75 dblLowerBoll = Math.round((gLowerBoll.getValue(0))*10000)/10000;
> C:\Program Files\eSignal\Formulas\DL_Formulas\DL_MACD_BB.efs ---
File
> time: 10:55:42 PM
> eSignal Formula Script --- Printed on: 12/1/2007, 11:14:53 PM ---
> Page 2
> 76
> 77 // MACD plot
> 78 if (dblMACD > dblMACD_1) strCircleColor = "Color.green";
> 79 else if (dblMACD == dblMACD_1) strCircleColor = "Color.white";
> 80 else if (dblMACD < dblMACD_1) strCircleColor = "Color.red";
> 81
> 82 drawShapeRelative(0, dblMACD, Shape.CIRCLE, null, eval
> (strCircleColor), Shape.ONTOP );
> 83
> 84 // changes the color of the band based on the value of the MACD
> 85 if (dblMACD >= 0) strBasisColor = "Color.green"; else
> strBasisColor = "Color.red";
> 86
> 87 drawLineRelative(-1,0,0,0, PS_SOLID, 2, eval
> (strBasisColor),fnGetTagID());
> 88 addBand(0,PS_SOLID,2,eval(strBasisColor),"0line");
> 89
> 90 return new Array (dblUpperBoll,dblLowerBoll);
> 91
> 92 }
> 93 function fnGetTagID() {
> 94 gTagID += 1;
> 95 return gTagID;
> 96 }
> C:\Program Files\eSignal\Formulas\DL_Formulas\DL_MACD_BB.efs ---
File
> time: 10:55:42 PM
>
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