2008 Sept: The Midas Touch, Part I

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File Name: Midas.efs

The following study is based on the September 2008 article, The Midas Touch, Part I, by Andrew Cole.

Formula Parameters:
Start Date: [Enter date]
Start Time: 00:00

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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:        The Midas Touch Part I                    by Andrew Coles, PhDVersion:            1.0  7/11/2008Notes:* September 2008 Issue of Stocks and Commodities Magazine* Study requires version 8.0 or later.Formula Parameters:                     Default:Start Date (mm/dd/yyyy)                 1/2/2008Start Time hh:mm (use 00:00 if Daily)   00:00**********************************/function preMain(){    setPriceStudy(true);    setStudyTitle("MIDAS")    setCursorLabelName("MIDAS");    setDefaultBarFgColor(Color.blue);    setDefaultBarThickness(1);        var fp1 = new FunctionParameter("StartDate", FunctionParameter.STRING);        fp1.setName("Start Date (mm/dd/yyyy)");        fp1.setDefault("1/2/2008");    var fp2 = new FunctionParameter("StartTime", FunctionParameter.STRING);        fp2.setName("Start Time hh:mm (use 00:00 if Daily)");        fp2.setDefault("00:00");}var bVersion    = null;var bInit = false;var xDay; var xMonth;var xYear;var xHour;var xMinute;var xMP = null;var xVolume = null;var CumVol = 0;var CumVol_1 = 0;var CumPriceVol = 0;var CumPriceVol_1 = 0;var CumVolAtStart = 0;var CumPriceVolAtStart = 0;var BarCounter = 0;var Start = false;function main(StartDate,StartTime){    if (bVersion == null) bVersion = verify();    if (bVersion == false) return;        if(bInit==false){        var xStartDate = StartDate.split("/");        var xStartTime = StartTime.split(":")        xMonth = xStartDate[0];        xDay = xStartDate[1];        xYear = xStartDate[2];        xHour = xStartTime[0];        xMinute = xStartTime[1];        xMP = hl2();        xVolume = volume();        bInit = true;    }    var nBarState = getBarState();    if(nBarState==BARSTATE_NEWBAR){        CumVol_1 = CumVol;        CumPriceVol_1 = CumPriceVol;        if(Start==true) BarCounter++;    }    var nVolume = xVolume.getValue(0);    var nMP = xMP.getValue(0);    if(nVolume==null||nMP==null) return;    if(getCurrentBarCount()==1){        CumVol = nVolume;        CumPriceVol = nMP*nVolume;    }else{        CumVol = CumVol_1+nVolume;        CumPriceVol = CumPriceVol_1+(nMP*nVolume);    }    if(Start==false && month(0)==xMonth && day(0)==xDay && year(0)==xYear && hour(0)==xHour && minute(0)==xMinute) {        CumVolAtStart = CumVol-nVolume;        CumPriceVolAtStart = CumPriceVol-(nMP*nVolume);        BarCounter=1;        Start = true;    }    if(BarCounter==0){        return;    }else if(BarCounter==1){        var MIDAS = nMP;    }else if(BarCounter>1){        var Denom = CumVol-CumVolAtStart;        if(Denom==0) Denom = 1;        var MIDAS = (CumPriceVol-CumPriceVolAtStart)/Denom    }    return MIDAS;}    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;}