[amibroker] AB Problem with IIF command.

["buy2stop" <buy2stop@xxxxxxxx>]

In conjunction with iif command above a LineArray( x0, y0, x1, y1)
I get a bad argument error. Any suggestions?

AFL error output:
Line 115, Column 34:
	x0=sp1; 
	x1=IIf(sp1>rp1,BarCount-1,rp1); 
	tmp=x1; 
	Line = LineArray( x0, y0, x1,y1);
-------------------------------------^

Error 2.
Bad argument(s) 




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