/*********************************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: MACD GradientVersion: 1.0 10/28/2008Formula Parameters: Default: Fast Length 12 Slow Length 26 Smoothing 9Notes: Changes colors of the price bars according to the relative level of MACDDiff.**********************************/var fpArray = new Array();var bInit = false;function preMain() { setPriceStudy(true); setShowCursorLabel(false); setShowTitleParameters( false ); setStudyTitle("MACD Gradient"); setColorPriceBars(true); var x=0; fpArray[x] = new FunctionParameter("FastLength", FunctionParameter.NUMBER); with(fpArray[x++]){ setName("Fast Length"); setLowerLimit(1); setDefault(12); } fpArray[x] = new FunctionParameter("SlowLength", FunctionParameter.NUMBER); with(fpArray[x++]){ setName("Slow Length"); setLowerLimit(1); setDefault(26); } fpArray[x] = new FunctionParameter("Smoothing", FunctionParameter.NUMBER); with(fpArray[x++]){ setName("Smoothing"); setLowerLimit(1); setDefault(9); }}var xMACDValue = null;var nR = 0;var nG = 0;var nB = 0;var Max = 1;var Min = -1;function main(FastLength, SlowLength, Smoothing) {var nMACDDiff = 0;var nValue = 0; if ( bInit == false ) { xMACDValue = macdHist(FastLength, SlowLength, Smoothing); bInit = true; } if (getCurrentBarCount() < Math.max(SlowLength, FastLength)) return; nValue = xMACDValue.getValue(0); nR = 0; if (nValue >= 0) { nG = 220; nB = Math.round(nValue * 100) + 5; if (nB > Max) Max = nB; if (nB < Min) Min = nB; nB = RGB_G(nB, Max, Min); if (nB == null) nB = 0; } else { nG = Math.round(Math.abs(nValue) * 100) + 5; nB = 255; if (nG > Max) Max = nG; if (nR < Min) Min = nG; nG = RGB_G(nG, Max, Min); if (nG == null) nG = 0; } setPriceBarColor(Color.RGB(nR,nG,nB)); return; }function RGB_G(Val, Max, Min) {var tmpG = 0;var Perc1 = 0; if (Val > 0) { Perc1 = (Val * 100) / Max; tmpG = 255 - (Perc1*255)/100; return Math.round(tmpG); } else { Perc1 = ((Val*-1) * 100) / (Min*-1); tmpG = 255 - (Perc1*255)/100; return Math.round(tmpG); } return tmpG;} |
