This code is from the AFL library and I'd like to apply it to all my explorer codes to preset the date ranges for my explorations, but I don't quite understand what part of the code I need to use. Can someone help me to determine the essential portion and I can use it in and include file for all my explorations. I'm guessing that the period is the number of day (bars on a daily chart), but how do I apply the FirstBarInRange and the LastBarInRange to a filter?
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Periods=40; x=BarIndex(); xMA=tcnt=tsum=Null; xfirst = LastValue(ValueWhen(Status("FirstBarInRange"), x, 1)); xlast = LastValue(ValueWhen(Status("LastBarInRange" ), x, 1)); if(xfirst>Periods){ for (i = xfirst; i < xlast + 1; i++){ tcnt[i]=0; tsum[i]=0; for (j=0; j<Periods; j++){ tcnt[i]++; tsum[i]= tsum[i] + Close[i-j]; } xMA[i]=tsum[i]/tcnt[i]; } Title= "xFirst= " + WriteVal(xFirst,1.0) + ", xLast= " + WriteVal(xLast,1.0); Plot(Close,"Close",colorBlack,styleLine+styleThick); Plot(xMA,"xMA",colorRed,styleLine+styleThick); PlotShapes( IIf( xfirst==x, shapeCircle, shapeNone ), colorIndigo ); PlotShapes( IIf( xlast==x, shapeCircle, shapeNone ), colorIndigo ); Buy=Cross(C,xMA); Sell=Cross(xMA,C); Buy = ExRem(Buy, Sell); Sell = ExRem(Sell, Buy); PlotShapes( IIf( Buy, shapeUpArrow, shapeNone ), colorGreen ); PlotShapes( IIf( Sell, shapeDownArrow, shapeNone ), colorRed ); Filter= C>10; AddColumn(Close, "Close" , 1.2); AddColumn(Volume, "Volume" , 1.0); }__._,_.___
Posted by: jockpotter@yahoo.com
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