MACD Gradient

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MACDGradient.efs  EFSLibrary - Discussion Board
  

File Name: MACDGradient.efs


Description:
MACD Gradient


Formula Parameters:
Fast Length: 12
Slow Length: 26
Smoothing: 9

Notes:
Changes colors of the price bars according to the relative level
of MACDDiff.

Download File:
MACDGradient.efs




EFS Code:




/*********************************Provided By:      eSignal (Copyright c eSignal), a division of Interactive Data     Corporation. 2008. All rights reserved. This sample eSignal     Formula Script (EFS) is for educational purposes only and may be     modified and saved under a new file name.  eSignal is not responsible    for the functionality once modified.  eSignal reserves the right     to modify and overwrite this EFS file with each new release.Description:            MACD GradientVersion:            1.0  10/28/2008Formula Parameters:                     Default:    Fast Length                          12    Slow Length                          26    Smoothing                            9Notes:    Changes colors of the price bars according to the relative level    of MACDDiff.**********************************/var fpArray = new Array();var bInit = false;function preMain() {    setPriceStudy(true);    setShowCursorLabel(false);    setShowTitleParameters( false );    setStudyTitle("MACD Gradient");    setColorPriceBars(true);        var x=0;    fpArray[x] = new FunctionParameter("FastLength", FunctionParameter.NUMBER);	with(fpArray[x++]){        setName("Fast Length");        setLowerLimit(1);		        setDefault(12);    }    fpArray[x] = new FunctionParameter("SlowLength", FunctionParameter.NUMBER);	with(fpArray[x++]){        setName("Slow Length");        setLowerLimit(1);		        setDefault(26);    }    fpArray[x] = new FunctionParameter("Smoothing", FunctionParameter.NUMBER);	with(fpArray[x++]){        setName("Smoothing");        setLowerLimit(1);		        setDefault(9);    }}var	xMACDValue = null;var nR = 0;var nG = 0;var nB = 0;var Max = 1;var Min = -1;function main(FastLength, SlowLength, Smoothing) {var nMACDDiff = 0;var nValue = 0;    if ( bInit == false ) {         xMACDValue = macdHist(FastLength, SlowLength, Smoothing);        bInit = true;     }     if (getCurrentBarCount() < Math.max(SlowLength, FastLength)) return;    nValue = xMACDValue.getValue(0);    nR = 0;       if (nValue >= 0) {        nG = 220;        nB = Math.round(nValue * 100) + 5;            if (nB > Max) Max = nB;        if (nB < Min) Min = nB;        nB = RGB_G(nB, Max, Min);        if (nB == null) nB = 0;    } else {        nG = Math.round(Math.abs(nValue) * 100) + 5;                nB = 255;                if (nG > Max) Max = nG;        if (nR < Min) Min = nG;        nG = RGB_G(nG, Max, Min);        if (nG == null) nG = 0;    }    setPriceBarColor(Color.RGB(nR,nG,nB));    return; }function RGB_G(Val, Max, Min) {var tmpG = 0;var Perc1 = 0;    if (Val > 0) {        Perc1 = (Val * 100) / Max;        tmpG = 255 - (Perc1*255)/100;        return Math.round(tmpG);    } else {        Perc1 = ((Val*-1) * 100) / (Min*-1);        tmpG = 255 - (Perc1*255)/100;        return Math.round(tmpG);    }    return  tmpG;}