QuickMA

//+------------------------------------------------------------------+
//|                                                      QuickMA.mq4 |
//|                                                           mladen |
//|                                                                  |
//| original (tradestation version) by John McCormick, 2008          |        
//+------------------------------------------------------------------+
#property copyright "mladen"
#property link      "mladenfx@gmail.com"

#property indicator_chart_window
#property indicator_buffers 1
#property indicator_color1 Red

//
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extern int  Length  = 14;
extern int  Shift   = 0;
extern int  Price   = PRICE_CLOSE;

//
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double buffer1[];


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
//
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int init()
{
   SetIndexBuffer(0,buffer1); SetIndexShift(0,Shift);
   return(0);
}
int deinit() { return(0); }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
//
//
//
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int start()
{
   int counted_bars=IndicatorCounted();
   int i,limit;

   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
         limit = Bars-counted_bars;

   //
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   for(i=limit; i>=0; i--)
   {
      double sum     = 0;
      double divisor = 0;
      double peak    = Length/3.0;

      //
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      for(int k=1; k<=(Length+1); k++)
      {
         double val;
            if(k <= peak)
                  val = k/peak;
            else  val = (Length+1-k)/(Length+1-peak);
            sum     += iMA(NULL,0,1,0,MODE_SMA,Price,i+k-1)*val;
            divisor += val;
      }
      if (divisor!=0)
            buffer1[i] = sum/divisor;
      else  buffer1[i] = 0;    
   }
   
   //
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   return(0);
}