Indicatore Metatrader - MACD Classico

//+------------------------------------------------------------------+ //| MACD.mq4 | //| Copyright © 2005, David W. Thomas | //| mailto:Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo. | //+------------------------------------------------------------------+ // This is the correct computation and display of MACD. #property copyright "Copyright © 2005, David W. Thomas" #property link "mailto:Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo." #property indicator_separate_window #property indicator_buffers 2 #property indicator_color1 Blue #property indicator_color2 Red //#property indicator_color3 Green //---- input parameters extern int FastMAPeriod=12; extern int SlowMAPeriod=26; extern int SignalMAPeriod=9; //---- buffers double MACDLineBuffer[]; double SignalLineBuffer[]; double HistogramBuffer[]; //---- variables double alpha = 0; double alpha_1 = 0; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int init() { IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS)+1); //---- indicators SetIndexStyle(0,DRAW_LINE); SetIndexBuffer(0,MACDLineBuffer); SetIndexDrawBegin(0,SlowMAPeriod); SetIndexStyle(1,DRAW_LINE,STYLE_DOT); SetIndexBuffer(1,SignalLineBuffer); SetIndexDrawBegin(1,SlowMAPeriod+SignalMAPeriod); // SetIndexStyle(2,DRAW_HISTOGRAM); // SetIndexBuffer(2,HistogramBuffer); // SetIndexDrawBegin(2,SlowMAPeriod+SignalMAPeriod); //---- name for DataWindow and indicator subwindow label IndicatorShortName("MACD("+FastMAPeriod+","+SlowMAPeriod+","+SignalMAPeriod+")"); SetIndexLabel(0,"MACD"); SetIndexLabel(1,"Signal"); //---- alpha = 2.0 / (SignalMAPeriod + 1.0); alpha_1 = 1.0 - alpha; //---- return(0); } //+------------------------------------------------------------------+ //| Custor indicator deinitialization function | //+------------------------------------------------------------------+ int deinit() { //---- //---- return(0); } //+------------------------------------------------------------------+ //| Custom indicator iteration function | //+------------------------------------------------------------------+ int start() { int limit; int counted_bars = IndicatorCounted(); //---- check for possible errors if (counted_bars<0) return(-1); //---- last counted bar will be recounted if (counted_bars>0) counted_bars--; limit = Bars - counted_bars; for(int i=limit; i>=0; i--) { MACDLineBuffer[i] = iMA(NULL,0,FastMAPeriod,0,MODE_EMA,PRICE_CLOSE,i) - iMA(NULL,0,SlowMAPeriod,0,MODE_EMA,PRICE_CLOSE,i); SignalLineBuffer[i] = alpha*MACDLineBuffer[i] + alpha_1*SignalLineBuffer[i+1]; HistogramBuffer[i] = MACDLineBuffer[i] - SignalLineBuffer[i]; } //---- return(0); } //+------------------------------------------------------------------+