2008 July: Leader of the MACD – EFS

MACD_Leader.efs

File Name: MACD_Leader.efs

Description:
The following study is based on the July 2008 article, Leader of the MACD, by Giorgos E. Siligardos, PhD.

Formula Parameters:

Notes:
The related article is copyrighted material. If you are not a subscriber of Stocks & Commodities, please visit www.traders.com.

Download File:
MACD_Leader.efs

EFS Code:

/*********************************
Provided By:  
    eSignal (Copyright © eSignal), a division of Interactive Data 
    Corporation. 2007. 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:        Leader of the MACD
                    by Giorgos E. Siligardos, PhD

Version:            1.0  5/13/2008

Notes:
* July 2008 Issue of Stocks and Commodities Magazine
* Study requires version 8.0 or later.

**********************************/


function preMain(){
    setStudyTitle("MACD Leader");
    setPriceStudy(false);
    setCursorLabelName("Leader");
}

var bVersion    = null;
var bInit = false;
var xMACDLeader = null;

function main(){

    if (bVersion == null) bVersion = verify();
    if (bVersion == false) return;    

    if(bInit == false){
        xMACDLeader = efsInternal("Calc");
        bInit = true;
    }
    
    var nMACDLeader = xMACDLeader.getValue(0);
    
    if(nMACDLeader==null) return;
    
    return nMACDLeader;
}

var xInit = false;
var xMACDSig1 = null;
var xMACDSig2 = null;
var xEMA1 = null;
var xEMA2 = null;

function Calc(){

    if(xInit==false){
        xMACDSig1 = macdSignal(1,12,12);
        xMACDSig2 = macdSignal(1,26,26);
        xEMA1 = ema(12);
        xEMA2 = ema(26);
        xInit = true;
    }
    
    var nMACDSig1 = xMACDSig1.getValue(0);
    var nMACDSig2 = xMACDSig2.getValue(0);
    var nEMA1 = xEMA1.getValue(0);
    var nEMA2 = xEMA2.getValue(0);
    
    if(nMACDSig1==null || nMACDSig2==null || nEMA1==null || nEMA2==null) return;
    
    var Indicator1 = nEMA1+nMACDSig1;
    var Indicator2 = nEMA2+nMACDSig2;
    
    return Indicator1-Indicator2;
}

function verify() {
    var b = false;
    if (getBuildNumber() < 779) {
        drawTextAbsolute(5, 35, "This study requires version 8.0 or later.", 
            Color.white, Color.blue, Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOLD|Text.LEFT,
            null, 13, "error");
        drawTextAbsolute(5, 20, "Click HERE to upgrade.@URL=http://www.esignal.com/download/default.asp", 
            Color.white, Color.blue, Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOLD|Text.LEFT,
            null, 13, "upgrade");
        return b;
    } else {
        b = true;
    }
    
    return b;
}