[amibroker] Help to find Previous X Bar

["Panos Boufardeas" <panosbouf@xxxxxxxxxxx>]

Can you please tell me how to correct the following formula?

I would like to find out the fist previous x bar, that has a price
between of the next HSPHigh 
 
HSP =H > Ref(H,2) & H > Ref(H,1) & H > Ref(H,-1) & H > Ref(H,-2); 
HSPHigh = ValueWhen(HSP,H);  
 Test_PreviousBar= H<= HSPHigh AND L>= HSPHigh;  
 PlotShapes(IIf(HSP,shapeSmallCircle,False),colorRed,0,H,13);
PlotShapes(IIf(Test_PreviousBar,shapeHollowStar,False),colorRed,0,H,22);
Plot( Close, "",  colorBlack, styleBar );
 
I mean when a HSP appears look back and find the first
"Test_PreviousBar" on the row
 
Thank you 
Panos



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