在MT4上使用双线MACD指标源码

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MACD指标是股票交易中经典的一款技术分析指标，该指标由两条曲线和柱线组成。

基本用法：MACD金叉：DIFF由下向上突破DEA，为买入信号。MACD死叉：DIFF由上向下突破DEA，为卖出信号。MACD绿转红：MACD值由负变正，市场由空头转为多头。MACD红转绿：MACD值正转负，市场多头转空头。DIFF与DEA均为正值，即都在零轴线以上时，大势属于多头市场，DIFF向上突破DEA，可以做买入信号。DIFF与DEA均为负值，即都在零轴线以下时，大势属于空头市场，DIFF向下跌破DEA，可做卖出信号。DEA在盘整局面失误率高，配合RSI及KDJ指标可以适当弥补缺点。

效果如下：
在这里插入图片描述
源代码：

#property copyright "Copyright 2021,EATrader."
#property link "https://www.mql5.com/"
#property description "关注公众号：从零开始学EA交易"
"\n微信号：XQH20200705"
#property icon "\\Images\\001.ico"
#property version "1.00"
#property strict
#property indicator_separate_window
#property indicator_buffers 4
#property indicator_plots 4
//--- plot DIF
#property indicator_label1 "DIF"
#property indicator_type1 DRAW_LINE
#property indicator_color1 clrSilver
#property indicator_style1 STYLE_SOLID
#property indicator_width1 1
//--- plot DEA
#property indicator_label2 "DEA"
#property indicator_type2 DRAW_LINE
#property indicator_color2 clrYellow
#property indicator_style2 STYLE_SOLID
#property indicator_width2 1
//--- plot macd hist+
#property indicator_label3 "Macd+"
#property indicator_type3 DRAW_HISTOGRAM
#property indicator_color3 clrRed
#property indicator_style3 STYLE_SOLID
#property indicator_width3 1
//--- plot macd hist-
#property indicator_label4 "Macd-"
#property indicator_type4 DRAW_HISTOGRAM
#property indicator_color4 clrAqua
#property indicator_style4 STYLE_SOLID
#property indicator_width4 1
input int FastEMA = 12;
input int SlowEMA = 26;
input int MACDEMA = 9;
//--- indicator buffers
double         DIFBuffer[];
double         DEABuffer[];
double         MacdHistBuffer[];
double         MacdHistBuffer1[];
double w=0;
double w1=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit()
{ 

//--- indicator buffers mapping
SetIndexBuffer(0,DIFBuffer);
SetIndexBuffer(1,DEABuffer);
SetIndexBuffer(2,MacdHistBuffer);
SetIndexBuffer(3,MacdHistBuffer1);
SetIndexEmptyValue(2,EMPTY_VALUE);
SetIndexEmptyValue(3,EMPTY_VALUE);
for(int i=0; i<4; i++)
SetIndexDrawBegin(i,SlowEMA+MACDEMA);
IndicatorDigits(Digits);
IndicatorShortName("MACD("+(string)FastEMA+","+(string)SlowEMA+","+(string)MACDEMA+")");
if(FastEMA<0 || SlowEMA<0 || MACDEMA<0)
return(INIT_FAILED);
w = 2.0/(MACDEMA + 1);
w1= 1.0-w;
//---
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const datetime &time[],
const double &open[],
const double &high[],
const double &low[],
const double &close[],
const long &tick_volume[],
const long &volume[],
const int &spread[])
{ 

//---
int i,limit=0;
if(rates_total<=0) return(0);
if(prev_calculated<=0) limit=rates_total-1;
else limit=rates_total-prev_calculated+1;
double hst=0.0;
for(i=limit; i>=0; i--)
{ 

if(i==rates_total-1) continue;
DIFBuffer[i]=iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,i)-iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,i);
DEABuffer[i]=w*DIFBuffer[i]+w1*DEABuffer[i+1];
hst = 2.0*(DIFBuffer[i]-DEABuffer[i]);
if(hst>=0)
{ 

MacdHistBuffer[i]=hst;
MacdHistBuffer1[i]=EMPTY_VALUE;
}
else
{ 

MacdHistBuffer1[i]=hst;
MacdHistBuffer[i]=EMPTY_VALUE;
}
}
//--- return value of prev_calculated for next call
return(rates_total);
}
//+------------------------------------------------------------------+