string CheckEntry()
   {
      // We create a string variable for the signal
      string signal="";
      
      // We create an array for the price data
      MqlRates PriceArray[];

      // We sort the price array from the current candle downwards
      ArraySetAsSeries(PriceArray,true);     

      // We fill the price array with data for 3 candles
      int Data =CopyRates(_Symbol,_Period,0,3,PriceArray);
      
	  // We create another array for the Expert Advisor
      double EAArray[]; 
      
      // We sort the array from the current candle downwards
      ArraySetAsSeries(EAArray,true); 
      
      // We define the iVIDyA EA  
      int iVIDyADefinition =iVIDyA(_Symbol,_Period,9,12,0,PRICE_CLOSE); 
      
 	  // Defined EA, 1 Buffer, current candle, for 3 candles, store in array
      CopyBuffer(iVIDyADefinition,0,0,3,EAArray);
      
	  // Calculate the current value
      float IVIDYAVALUE=EAArray[0];

      // Buy signal
      if (IVIDYAVALUE>PriceArray[1].close)
      signal="buy"; 
      
	  // Sell signal
      if (IVIDYAVALUE<PriceArray[1].close)
      signal="sell";  
   
   return signal;
   }