Sample Indicator

Indicators

Sample Indicator

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asimon 07-25-2006, 4:52 PM

public class iStub
{
   int tickcount;
   int periods;

   //
   // declare basic indicators here
   //

   public iStub(int pPeriods)
   {
      periods = pPeriods;
      tickcount = 0;
      // instantiate any basic indicators here
   }

   public void ReceiveTick(double Val)
   {
      tickcount++;
      if (tickcount == (3*periods))
      {
         tickcount = (2*periods); // avoid overflow (large->0) when indicator is primed
      }
      // perform indicator calculations here or send ticks to other indicators
   }

   public double Value()
   {
      double v=0;
      // compute indicator value here (note that this function might get called multiple times
      // so do not set flags or do time specific behavior
      if (isPrimed())
      {
         // perform computation of output value
         v = 1;
      }
      return v;
   }

   // returns true when indicator has seen enough values to compute a result
   // it will never return true if initialization parameters are incorrect
   // this will cause indicator to silently fail and not give results
   // on optimization runs where parameter combination is invalid.
   public bool isPrimed()
   { 
      bool v = false;
      // change this to the appropriate criteria
      if ((tickcount >= periods) && (periods>0))
      {
         v = true;
      }
      return v;
   }

}