Hi all, I compare the serie from the function EMA() and the one from addEMA() getSymbols("^FCHI") M7=EMA(Cl(FCHI),7) candleChart(FCHI,theme="white",subset="2015",TA=NULL) addEMA(7) addTA(M7,on=-1) I don't understant why I don't obtain the same serie with the two functions... Reagrds, Olivier.