if you are using PSP, the XAverage function will not work as the value will be reference to the Data1 chart. Therefore you will need another function to input numeric series of the PSP data to calculate the XAverage.

Below are the function you may create named XAveragePSP

{  
This function calculates XAverage for non-chart data series (i.e., Price Series Providers).  The delivered XAverage only handles chart data.  
}  
  
Using tsdata.marketdata;  
 
XAveragePSP = 0;  
  
Inputs:   
	PriceSeriesProvider PSP(objectref), {Reference to a Price Series Provider}  
	Length(numericsimple) ; {this input must be a constant >= 0}  
  
Variables:   
	IntrabarPersist SmoothingFactor(0),  
	IntrabarPersist PriorXAvg(0),  
	IntrabarPersist CurrentXAvg(0),  
	IntrabarPersist Cnt(0) ;  
  
Once  
	begin  
	if Length >= 0 then  
		SmoothingFactor =  2 / ( Length + 1 )  
	else  
		RaiseRuntimeError( !( "The Length input of the XAverage function must be " +  
		 "greater than or equal to 0." ) ) ;  
	end ;  
  
Begin  
    For Cnt = PSP.Count - 1 DownTo 0   
    	Begin   
  			If cnt = PSP.Count - 1 Then  
  				Begin  
  					PriorXAvg = PSP.Close[Cnt];  
  					CurrentXAvg = PriorXAvg;  
	  			End  
  			Else  
  				Begin  
  					CurrentXAvg = PriorXAvg + SmoothingFactor * (PSP.Close[Cnt] - PriorXAvg);  
  					PriorXAvg = CurrentXAvg;  
  			end;   
 		End;  
	XAveragePSP = CurrentXAvg;  
End;

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