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Osma_5_bar.mq4

Time: 2011-01-02 | Download file:Osma_5_bar.mq4

#property link "http://www.forex-instruments.info"
//+------------------------------------------------------------------+
//|                                                         OsMA.mq4 |
//|                      Copyright © 2004, MetaQuotes Software Corp. |
//|                                       http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property  copyright "Copyright © 2004, MetaQuotes Software Corp."
#property  link      "http://www.metaquotes.net/"
//---- indicator settings
#property  indicator_separate_window
#property  indicator_buffers 1
#property  indicator_color1  Silver
//---- indicator parameters
extern int FastEMA=12;
extern int SlowEMA=26;
extern int SignalSMA=9;
//---- indicator buffers
double     ind_buffer1[];
double     ind_buffer2[];
double     ind_buffer3[];

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- 2 additional buffers are used for counting.
   IndicatorBuffers(3);
//---- drawing settings
   SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID,3);
   SetIndexDrawBegin(0,SignalSMA);
   IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS)+2);
//---- 3 indicator buffers mapping
   if(!SetIndexBuffer(0,ind_buffer1) &&
      !SetIndexBuffer(1,ind_buffer2) &&
      !SetIndexBuffer(2,ind_buffer3))
      Print("cannot set indicator buffers!");
//---- name for DataWindow and indicator subwindow label
   IndicatorShortName("OsMA_5_bar_rolling ("+FastEMA+","+SlowEMA+","+SignalSMA+")");
//---- initialization done

   return(0);
  }
//+------------------------------------------------------------------+
//| Moving Average of Oscillator                                     |
//+------------------------------------------------------------------+
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;
//---- macd counted in the 1-st additional buffer


   for(int i=0; i=0)
        {
         if(pos==cnt-2) ExtMapBuffer[pos+1]=ClosePricesArray[pos+1];
         ExtMapBuffer[pos]=ClosePricesArray[pos]*pr+ExtMapBuffer[pos+1]*(1-pr);
         pos--;
        }
      
      
      //------Calculate the second of two EMAs the MACD is based on
      double ExtMapBuffer2[];
      ArrayResize(ExtMapBuffer2,cnt);
      pr=2.0/(SlowEMA+1);
      pos=cnt-2;
      while(pos>=0)
        {
         if(pos==cnt-2) ExtMapBuffer2[pos+1]=ClosePricesArray[pos+1];
         ExtMapBuffer2[pos]=ClosePricesArray[pos]*pr+ExtMapBuffer2[pos+1]*(1-pr);
         pos--;
        }


      //------Calculate the MACD main line, which is the difference of the two MACD EMAs
      double ExtMapBuffer3[];
      ArrayResize(ExtMapBuffer3,cnt);
      for(int cnt2=0; cnt2        

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