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老师： 我是mt4的初学者，试做一些编程练习 我准备做周期为20的指数移动平均线 (EMA)的包络线，上包络线由指数移动平均线(EMA)50个周期的最大值构成, 下包络线由指数移动平均线(EMA)50个周期的最小值构成 我将mt4中已有的指标程序改写了如下： //---- indicator settings #property indicator_separate_window #property indicator_buffers 3 #property indicator_color1 Green #property indicator_color2 Red #property indicator_color3 DodgerBlue //---- indicator buffers double ExtBuffer0[]; double ExtBuffer1[]; double ExtBuffer2[]; int ExtBuffer3[]; int ExtBuffer4[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int init() { //---- 2 additional buffers are used for counting. IndicatorBuffers(5); //---- drawing settings SetIndexStyle(0,DRAW_LINE); SetIndexStyle(1,DRAW_LINE); SetIndexStyle(2,DRAW_LINE); IndicatorDigits(Digits+2); SetIndexDrawBegin(0,0); SetIndexDrawBegin(1,0); SetIndexDrawBegin(2,0); //---- 4 indicator buffers mapping SetIndexBuffer(0,ExtBuffer0); SetIndexBuffer(1,ExtBuffer1); SetIndexBuffer(2,ExtBuffer2); //---- name for DataWindow and indicator subwindow label IndicatorShortName("AaCc"); SetIndexLabel(1,NULL); SetIndexLabel(2,NULL); //---- initialization done return(0); } //+------------------------------------------------------------------+ //| Accelerator/Decelerator Oscillator | //+------------------------------------------------------------------+ int start() { int limit; int counted_bars=IndicatorCounted(); //---- last counted bar will be recounted //---- initial zero if(counted_bars0) counted_bars--; limit=Bars-counted_bars; //---- macd counted in the 1-st additional buffer for(int i=0; i |
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新闻EA运行效果图圈 2019-05-05
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