MQL4 - Moving Average Cross Over Signal

 

string getMAcrossoverSignal()
{
	  string Signal;
      
	  //current chart, current period, 20, no shift, simple, close price
      double SlowMovingAverage = iMA(NULL,0,50,0,MODE_SMA, PRICE_CLOSE, 0);
      
      //current chart, current period, 20, no shift, simple, close price
      double LastSlowMovingAverage = iMA(NULL,0,50,0,MODE_SMA, PRICE_CLOSE, 1);
      
      //current chart, current period, 10, no shift, simple, close price
      double FastMovingAverage = iMA(NULL,0,20,0,MODE_SMA, PRICE_CLOSE, 0);
      
      //current chart, current period, 10, no shift, simple, close price
      double LastFastMovingAverage = iMA(NULL,0,20,0,MODE_SMA, PRICE_CLOSE, 1);
      
       
      if ((LastFastMovingAverage < LastSlowMovingAverage) && (FastMovingAverage > SlowMovingAverage))
         { 
         	Comment ("CrossOver:", "BUY");
            Signal = "BUY";
         }
      
      if ((LastFastMovingAverage > LastSlowMovingAverage) && (FastMovingAverage < SlowMovingAverage))
         { 
         	Comment ("CrossOver:", "SELL");
            Signal = "SELL";
         }
         
       return Signal;
      
}