/*********************************Provided By: eSignal (Copyright c eSignal), a division of Interactive Data Corporation. 2008. 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: Buff AveragesVersion: 1.0 01/12/2009Formula Parameters: Default: Fast Avg Length 5 Slow Avg Length 20 Thickness 2 Line Color Fast Buff Red Line Color Slow Buff Blue Display Cursor Labels TrueNotes: 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;function preMain() { setPriceStudy(true); setShowCursorLabel(false); setShowTitleParameters( false ); setStudyTitle("Buff Averages"); setCursorLabelName("Fast Buff", 0); setCursorLabelName("Slow Buff", 1); setDefaultBarFgColor(Color.red, 0); setDefaultBarFgColor(Color.blue, 1); setPlotType(PLOTTYPE_LINE, 0); setPlotType(PLOTTYPE_LINE, 1); setDefaultBarThickness(2, 0); setDefaultBarThickness(2, 1); askForInput(); var x=0; fpArray[x] = new FunctionParameter("LineColor1", FunctionParameter.COLOR); with(fpArray[x++]){ setName("Line Color Fast Buff"); setDefault(Color.red); } fpArray[x] = new FunctionParameter("LineColor2", FunctionParameter.COLOR); with(fpArray[x++]){ setName("Line Color Slow Buff"); setDefault(Color.blue); } fpArray[x] = new FunctionParameter("ViewValue", FunctionParameter.BOOLEAN); with(fpArray[x++]){ setName("Display Cursor Labels"); setDefault(true); } fpArray[x] = new FunctionParameter("SlowAvg", FunctionParameter.NUMBER); with(fpArray[x++]){ setName("Slow Avg Length"); setLowerLimit(1); setDefault(20); } fpArray[x] = new FunctionParameter("FastAvg", FunctionParameter.NUMBER); with(fpArray[x++]){ setName("Fast Avg Length"); setLowerLimit(1); setDefault(5); } fpArray[x] = new FunctionParameter("Thickness", FunctionParameter.NUMBER); with(fpArray[x++]){ setName("Lines Thickness"); setLowerLimit(1); setDefault(2); }}var xBuffFastAvg = null;var xBuffSlowAvg = null;function main(FastAvg, SlowAvg, Thickness, LineColor1, LineColor2, ViewValue) {var nBuff1Res = 0;var nBuff2Res = 0; if ( bInit == false ) { setDefaultBarFgColor(LineColor1, 0); setDefaultBarFgColor(LineColor2, 1); setDefaultBarThickness(Thickness, 0); setDefaultBarThickness(Thickness, 1); setShowCursorLabel(ViewValue); xBuffFastAvg = efsInternal("Buff_Calc", FastAvg); xBuffSlowAvg = efsInternal("Buff_Calc", SlowAvg); bInit = true; } if (getCurrentBarCount() < Math.max(SlowAvg, FastAvg)) return; nBuff1Res = xBuffFastAvg.getValue(0); nBuff2Res = xBuffSlowAvg.getValue(0); if (nBuff1Res == null || nBuff2Res == null) return; return new Array(nBuff1Res, nBuff2Res); }function Buff_Calc(nLength) {var nVolSum = 0;var nRes = 0; for (var i = 0; i <= nLength -1; i++) { nVolSum += volume(-i); } if (nVolSum != 0) { for (var i = 0; i < nLength; i++){ nRes += (close(-i) * volume(-i)) / nVolSum; } } if (nRes == null) nRes = 1; return nRes;} |
