HeikenAshi.mq4

//+------------------------------------------------------------------+
//|                                 Heiken Ashi.mq4 |
//|                 Copyright 2004, metaQuotes Software Corp. |
//|                            http://www.metaquotes.net |
//+------------------------------------------------------------------+
//| For Heiken Ashi we recommend next chart settings ( press F8 or   |
//| select on menu 'Charts'- 'Properties...'):               |
//| - On 'Color' Tab select 'Black' for 'Line Graph'            |
//| - On 'Common' Tab disable 'Chart on Foreground' checkbox and    |
//|    select 'Line Chart' radiobutton                      |
//+------------------------------------------------------------------+
#property copyright Copyright 2004, metaQuotes Software Corp.
#property link      http://www.metaquotes.net

#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Red
#property indicator_color2 Blue
#property indicator_color3 Red
#property indicator_color4 Blue
//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
//----
int ExtCountedBars=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                  |
//|------------------------------------------------------------------|
int init()
 {
//---- indicators
   SetIndexStyle(0,DRAW_HISTOGRAM, 0, 1, Red);
   SetIndexBuffer(0, ExtMapBuffer1);
   SetIndexStyle(1,DRAW_HISTOGRAM, 0, 1, Blue);
   SetIndexBuffer(1, ExtMapBuffer2);
   SetIndexStyle(2,DRAW_HISTOGRAM, 0, 3, Red);
   SetIndexBuffer(2, ExtMapBuffer3);
   SetIndexStyle(3,DRAW_HISTOGRAM, 0, 3, Blue);
   SetIndexBuffer(3, ExtMapBuffer4);
//----
   SetIndexDrawBegin(0,10);
   SetIndexDrawBegin(1,10);
   SetIndexDrawBegin(2,10);
   SetIndexDrawBegin(3,10);
//---- indicator buffers mapping
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexBuffer(1,ExtMapBuffer2);
   SetIndexBuffer(2,ExtMapBuffer3);
   SetIndexBuffer(3,ExtMapBuffer4);
//---- initialization done
   return(0);
 }
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function               |
//+------------------------------------------------------------------+
int deinit()
 {
//---- TODO: add your code here
   
//----
   return(0);
 }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                     |
//+------------------------------------------------------------------+
int start()
 {
   double haOpen, haHigh, haLow, haClose;
   if(Bars =10) return(0);
   ExtCountedBars=IndicatorCounted();
//---- check for possible errors
   if (ExtCountedBars 0) return(-1);
//---- last counted bar will be recounted
   if (ExtCountedBars 0) ExtCountedBars--;
   int pos=Bars-ExtCountedBars-1;
   while(pos =0)
   {
     haOpen=(ExtMapBuffer3[pos+1]+ExtMapBuffer4[pos+1])/2;
     haClose=(Open[pos]+High[pos]+Low[pos]+Close[pos])/4;
     haHigh=MathMax(High[pos], MathMax(haOpen, haClose));
     haLow=MathMin(Low[pos], MathMin(haOpen, haClose));
     if (haOpen haClose)
     {
       ExtMapBuffer1[pos]=haLow;
       ExtMapBuffer2[pos]=haHigh;
     }
     else
     {
       ExtMapBuffer1[pos]=haHigh;
       ExtMapBuffer2[pos]=haLow;
     }
     ExtMapBuffer3[pos]=haOpen;
     ExtMapBuffer4[pos]=haClose;
          pos--;
   }
//----
   return(0);
 }
//+------------------------------------------------------------------+复制代码

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