[amibroker] Re: help needed for this formula

[aboaziz_sa]

this will do!



crossup= Cross( ROCadj , ROC( C, periods )) ;
crossdown= Cross( ROC( C, periods ), ROCadj ) ;
x = LastValue(ValueWhen(crossup, BarIndex(), 1));
PlotShapes(IIf(BarIndex() == x, shapeUpArrow, Null), colorBrightGreen);
y = LastValue(ValueWhen(crossdown, BarIndex(), 1));
PlotShapes(IIf(BarIndex() == y, shapeDownArrow, Null), colorRed);