/*********************************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: Profit With High Relative Strength Mutual Funds, by Gerald GardnerVersion: 1.0 02/06/2009Formula Parameters: Default: Volatility HOTFX Color Blue Volatility FHYTX Color Red Volatility HOTFX Color Green Display Cursor Labels True SMA Length For HOTFX 10 SMA Length For FHYTX 20 Line Thickness 2Notes: The related article is copyrighted material. If you are not a subscriber of Stocks & Commodities, please visit www.traders.com. **********************************/var fpArray = new Array();var bInit = false;var bVersion = null;function preMain() { setPriceStudy(false); setShowCursorLabel(false); setShowTitleParameters( false ); setStudyTitle("Gardner Volatility"); setCursorLabelName("Volatility HOTFX", 0); setCursorLabelName("Volatility FHYTX", 1); setCursorLabelName("Close - Avg", 2); setDefaultBarFgColor(Color.blue, 0); setPlotType(PLOTTYPE_HISTOGRAM, 0); setDefaultBarThickness(2, 0); setDefaultBarFgColor(Color.red, 1); setPlotType(PLOTTYPE_HISTOGRAM, 1); setDefaultBarThickness(2, 1); setDefaultBarFgColor(Color.green, 2); setPlotType(PLOTTYPE_HISTOGRAM, 2); setDefaultBarThickness(2, 2); askForInput(); var x=0; fpArray[x] = new FunctionParameter("LineColor1", FunctionParameter.COLOR); with(fpArray[x++]){ setName("Volatility HOTFX Color"); setDefault(Color.blue); } fpArray[x] = new FunctionParameter("LineColor2", FunctionParameter.COLOR); with(fpArray[x++]){ setName("Volatility FHYTX Color"); setDefault(Color.red); } fpArray[x] = new FunctionParameter("LineColor3", FunctionParameter.COLOR); with(fpArray[x++]){ setName("Volatility HOTFX Color"); setDefault(Color.green); } fpArray[x] = new FunctionParameter("ViewValue", FunctionParameter.BOOLEAN); with(fpArray[x++]){ setName("Display Cursor Labels"); setDefault(true); } fpArray[x] = new FunctionParameter("LengthHOTFX", FunctionParameter.NUMBER); with(fpArray[x++]){ setName("SMA Length For HOTFX"); setLowerLimit(1); setDefault(10); } fpArray[x] = new FunctionParameter("LengthFHYTX", FunctionParameter.NUMBER); with(fpArray[x++]){ setName("SMA Length For FHYTX"); setLowerLimit(1); setDefault(20); } fpArray[x] = new FunctionParameter("Thickness", FunctionParameter.NUMBER); with(fpArray[x++]){ setName("Line Thickness"); setLowerLimit(1); setDefault(2); }}var xPrice_FHYTX = null;var xSMA20_FHYTX = null;var xStdDev20_FHYTX = null;var xSMA10_HOTFX = null;var xStdDev10_HOTFX = null;function main(LengthHOTFX, LengthFHYTX, LineColor1, LineColor2, LineColor3, Thickness, ViewValue) {var nbdiffbuy = 0;var ndiffsell = 0;var nCloseGreaterSMA10 = 0; if (bVersion == null) bVersion = verify(); if (bVersion == false) return; if ( bInit == false ) { setDefaultBarFgColor(LineColor1, 0); setDefaultBarThickness(Thickness, 0); setDefaultBarFgColor(LineColor2, 1); setDefaultBarThickness(Thickness, 1); setDefaultBarFgColor(LineColor3, 2); setDefaultBarThickness(Thickness, 2); setShowCursorLabel(ViewValue); xPrice_FHYTX = close("FHYTX, D"); xSMA20_FHYTX = sma(20, xPrice_FHYTX); xStdDev20_FHYTX = efsInternal("StdDev", 20, xSMA20_FHYTX); xSMA10_HOTFX = sma(10); xStdDev10_HOTFX = efsInternal("StdDev", 10, close()); bInit = true; } if (xStdDev20_FHYTX.getValue(0) == null || xStdDev10_HOTFX.getValue(0) == null) return; ndiffbuy = (xPrice_FHYTX.getValue(0) - xSMA20_FHYTX.getValue(0)) / (2 * xStdDev20_FHYTX.getValue(0)); ndiffsell = (close(0) - xSMA10_HOTFX.getValue(0)) / (2 * xStdDev10_HOTFX.getValue(0)); nCloseGreaterSMA10 = close(0) - xSMA10_HOTFX.getValue(0); if (Strategy.isLong()) { if (ndiffbuy < -1 && ndiffsell < -1) { Strategy.doSell("Exit Long", Strategy.CLOSE, Strategy.THISBAR); drawTextRelative(-1, 0, "Exit Long", Color.black, Color.red, Text.VCENTER | Text.BOLD | Text.PRESET, null, null, "Txt" + getValue("time")); } } else { if (ndiffbuy > 1) { if (nCloseGreaterSMA10 > 0) { Strategy.doLong("Enter Long", Strategy.MARKET, Strategy.NEXTBAR); drawTextRelative(-1, 0, "Long", Color.black, Color.lime, Text.VCENTER | Text.BOLD | Text.PRESET, null, null, "Txt" + getValue("time")); } } } if (Strategy.isLong()) setBarBgColor(Color.lightgrey); return new Array(ndiffsell, ndiffbuy, nCloseGreaterSMA10); }function StdDev(nLength, xSeries) {var sum = 0;var avg = 0;var res = 0; if (xSeries.getValue(0) == null) return; for (var barsBack = nLength-1; barsBack >= 0; barsBack--) { sum += xSeries.getValue(barsBack*(-1)); } avg = sum / nLength; sum = 0; for (var barsBack = nLength - 1; barsBack >= 0; barsBack--) { sum += (xSeries.getValue(barsBack*(-1))-avg)*(xSeries.getValue(barsBack*(-1))-avg); } res = Math.sqrt(sum / nLength); return res; }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;} |
