2006 May: Cross-Market Evaluations With Normalized ATR

/***************************************Provided By : eSignal (c) Copyright 2006Description:  Cross-Market Evaluations With Normalized              Average True Range - by John FormanVersion 1.0  03/03/2006Notes:* May 2006 Issue of Stocks and Commodities Magazine* Study requires version 7.9.1 or higher.Formula Parameters:                 Defaults:Periods                             14***************************************/function preMain() {    setStudyTitle("Normalized ATR");    setCursorLabelName("N-ATR", 0);    setDefaultBarThickness(2, 0);        var fp1 = new FunctionParameter("nPeriods", FunctionParameter.NUMBER);        fp1.setName("N-ATR Periods");        fp1.setLowerLimit(1);        fp1.setDefault(14);}var bVersion = null;function main(nPeriods) {        if (bVersion == null) bVersion = verify();    if (bVersion == false) return;        if (getCurrentBarCount() <= nPeriods) return null;        return (atr(nPeriods, 0)/close(0))*100;}function verify() {    var b = false;    if (getBuildNumber() < 730) {        drawTextAbsolute(5, 35, "This study requires version 7.9.1 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;}