//+------------------------------------------------------------------+
//|                                      Elliott Wave Oscillator.mq4 |
//|                                                tonyc2a@yahoo.com |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright "tonyc2a@yahoo.com"
#property link      ""

#property indicator_separate_window
#property indicator_buffers 2
#property indicator_color1 DarkKhaki
#property indicator_color2 Red
#property indicator_level1 0

extern bool Main.Line.Histogram  =false;
extern int Fast.MA.Period = 5;
extern int Slow.MA.Period = 34;
extern int  Signal.period        = 5;

//---- buffers
double      Buffer1[],
            Buffer2[];

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   if(Main.Line.Histogram) 
      SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID,2);
   else
      SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,2);

   SetIndexBuffer (0,Buffer1);
   SetIndexLabel  (0,"EWO");

   SetIndexStyle  (1,DRAW_LINE,STYLE_SOLID,1);
   SetIndexBuffer (1,Buffer2);
   SetIndexLabel  (1,"Signal");
   
   IndicatorShortName("Elliott Wave Oscillator");
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- TODO: add your code here
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int    counted_bars=IndicatorCounted();
   double MA5,MA34;
   int limit=Bars-counted_bars;
   if(counted_bars>0) limit++;
//---- TODO: add your code here
   for(int i=0; i<limit; i++)
   {
      MA5=iMA(NULL,0,Fast.MA.Period,0,MODE_SMA,PRICE_MEDIAN,i);
      MA34=iMA(NULL,0,Slow.MA.Period,0,MODE_SMA,PRICE_MEDIAN,i);
      
      Buffer1[i]=MA5-MA34;
   }

   for(i=0; i<limit; i++)
   {
      Buffer2[i]=iMAOnArray(Buffer1,Bars,Signal.period,0,MODE_LWMA,i);
   }

//----
   return(0);
  }
//+------------------------------------------------------------------+