/*********************************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: Advance-Decline Line Version: 1.0 07/06/2009 Formula Parameters: Default: Exchange NYSENotes:**********************************/var fpArray = new Array();var bInit = false;function preMain(){ setPriceStudy(false); setStudyTitle("Advance-Decline Line"); setCursorLabelName("AdvDecLine"); var x=0; fpArray[x] = new FunctionParameter("sExchange", FunctionParameter.STRING); with(fpArray[x++]){ setName("Exchange"); addOption("NYSE"); addOption("NASDAQ"); setDefault("NYSE"); }}var xAdvDecL = null;function main(sExchange){var nBarState = getBarState(); if (nBarState == BARSTATE_ALLBARS) { if (sExchange == null) sExchange = "NYSE"; } if(!bInit){ xAdvDecL = efsInternal("Calc_AdvDec", sExchange); } return xAdvDecL.getValue(0);}var xAdvDec = null;function Calc_AdvDec(_exchange){ if(getBarState() == BARSTATE_ALLBARS){ if(_exchange == "NYSE"){ xAdvDec = close(sym("$ADD")); }else if(_exchange == "NASDAQ"){ xAdvDec = close(sym("$ADDQ")); } } if(xAdvDec.getValue(-2) == null) return; if(getCurrentBarCount() > 1) var nRef = ref(-1); var CumAdvDec = nRef + xAdvDec.getValue(0); return CumAdvDec;} |
