LMA Channels

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LMA_Channels.efs  EFSLibrary - Discussion Board
  

File Name: LMA_Channels.efs


Description:
LMA Channels


Formula Parameters:
Length : 20
Percentage : 0.5

Notes:

Download File:
LMA_Channels.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:            LMA Channels    Version:            1.0  10/29/2009 Formula Parameters:                     Default:    Length                              20    Percentage                          0.5    Notes:    **********************************/var fpArray = new Array();var bInit = false;function preMain(){    setPriceStudy(true);    setShowCursorLabel(true);    setShowTitleParameters(false);    setStudyTitle("LMA Channels");    setCursorLabelName("Up Band", 0);    setPlotType(PLOTTYPE_LINE, 0);    setDefaultBarFgColor(Color.blue, 0);    setCursorLabelName("Dn Band", 1);        setPlotType(PLOTTYPE_LINE, 1);    setDefaultBarFgColor(Color.blue, 1);    var x = 0;    fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);    with(fpArray[x++]) {        setLowerLimit(1);        setDefault(20);    }        fpArray[x] = new FunctionParameter("Percentage", FunctionParameter.NUMBER);    with(fpArray[x++]) {        setLowerLimit(0);        setDefault(0.5);    }        }var xMAD2 = null;var xMA = null;function main(Length, Percentage) {var nBarState = getBarState();var nUpBand = 0;var nDnBand = 0;var nMAD2 = 0;var nMA = 0;    if (nBarState == BARSTATE_ALLBARS) {        if(Length == null) Length = 20;        if(Percentage == null) Percentage = 0.5;	}	if (bInit == false) {        xMAD2 = wma(Math.round(Length / 2), low());        xMA = wma(Length, low());        bInit = true;	}	nMAD2 = xMAD2.getValue(0);	nMA = xMA.getValue(0);	if (nMAD2 == null || nMA == null) return;    nUpBand = (1 + Percentage / 100) * nMAD2 * 2 - nMA;    nDnBand = (1 - Percentage / 100) * nMAD2 * 2 - nMA;    return new Array(nUpBand, nDnBand);}