/*********************************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: EMA AngleVersion: 1.0 09/30/2009 Formula Parameters: Default: Length 34 AngleTreshold 0.2 StartEMAShift 6 EndEMAShift 0 Price Scale 10000Notes: **********************************/var fpArray = new Array();var bInit = false;function preMain(){ setPriceStudy(false); setShowCursorLabel(true); setShowTitleParameters(false); setStudyTitle("EMA Angle"); setCursorLabelName("EMAAngle", 0); setPlotType(PLOTTYPE_HISTOGRAM, 0); setDefaultBarFgColor(Color.red, 0); setDefaultBarThickness(2,0); var x = 0; fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER); with(fpArray[x++]) { setLowerLimit(1); setDefault(34); } fpArray[x] = new FunctionParameter("AngleTreshold", FunctionParameter.NUMBER); with(fpArray[x++]) { setLowerLimit(0.00001); setDefault(0.2); } fpArray[x] = new FunctionParameter("StartEMAShift", FunctionParameter.NUMBER); with(fpArray[x++]) { setLowerLimit(1); setDefault(6); } fpArray[x] = new FunctionParameter("EndEMAShift", FunctionParameter.NUMBER); with(fpArray[x++]) { setLowerLimit(0); setDefault(0); } fpArray[x] = new FunctionParameter("PriceScale", FunctionParameter.NUMBER); with(fpArray[x++]) { setLowerLimit(0); setDefault(10000); } }var xMA = null;function main(Length, AngleTreshold, StartEMAShift, EndEMAShift, PriceScale) {var nBarState = getBarState();var nEndMA = 0;var nStartMA = 0;var nAngle = 0;var dFactor = 3.14159 / 180.0;var mFactor = PriceScale;var ShiftDif = StartEMAShift - EndEMAShift; if (nBarState == BARSTATE_ALLBARS) { if(Length == null) Length = 34; if(AngleTreshold == null) AngleTreshold = 0.2; if(StartEMAShift == null) StartEMAShift = 6; if(EndEMAShift == null) EndEMAShift = 0; if(PriceScale == null) PriceScale = 10000; } mFactor = PriceScale; mFactor /= ShiftDif; if (bInit == false) { xMA = ema(Length, ohlc4()); bInit = true; } nEndMA = xMA.getValue(-EndEMAShift); nStartMA = xMA.getValue(-StartEMAShift); if (nEndMA == null || nStartMA == null) return; nAngle = mFactor * (nEndMA - nStartMA); if(nAngle > AngleTreshold) setBarFgColor(Color.green) else if (nAngle < -AngleTreshold) setBarFgColor(Color.red) else setBarFgColor(Color.black); return nAngle;} |
