Acceleration & Speed

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AccelerationSpeed.efs  EFSLibrary - Discussion Board
  

File Name: AccelerationSpeed.efs


Description:
Acceleration & Speed


Formula Parameters:
Length : 24
sPrice : Close

Notes:

Download File:
AccelerationSpeed.efs




EFS Code:


/*********************************Provided By:      eSignal (Copyright c eSignal), a division of Interactive Data     Corporation. 2009. 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:            Acceleration & SpeedVersion:            1.0  09/25/2009 Formula Parameters:                     Default:    Length                              24    sPrice                              Close    Notes:    **********************************/var fpArray = new Array();var bInit = false;function preMain(){    setPriceStudy(false);    setShowCursorLabel(true);    setShowTitleParameters(false);    setStudyTitle("Acceleration & Speed");    setCursorLabelName("Speed", 0);    setPlotType(PLOTTYPE_LINE, 0);    setDefaultBarFgColor(Color.red, 0);    setCursorLabelName("Acceleration", 1);    setPlotType(PLOTTYPE_LINE, 1);    setDefaultBarFgColor(Color.green, 1);    var x = 0;    fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);    with(fpArray[x++]) {        setLowerLimit(1);        setDefault(24);    }        fpArray[x] = new FunctionParameter("sPrice", FunctionParameter.STRING);	with(fpArray[x++]){        setName("Source of Price");        addOption("open");         addOption("high");        addOption("low");        addOption("close");        addOption("hl2");        addOption("hlc3");        addOption("ohlc4");         setDefault("close");     }    }var xSpeed = null;var xAcceleration = null;function main(Length, sPrice) {var nBarState = getBarState();var nSpeed = 0;var nAcceleration = 0;    if (nBarState == BARSTATE_ALLBARS) {        if(Length == null) Length = 2;        if(sPrice == null) sPrice = "close";	}	if (bInit == false) {        xSpeed = mom(Length, eval(sPrice)());        xAcceleration = mom(Length, xSpeed);        bInit = true;	}    nSpeed = xSpeed.getValue(0);    nAcceleration = xAcceleration.getValue(0);    if (nAcceleration == null) return;    return new Array(nSpeed, nAcceleration);}