Simple AFL code for 5 EMA(High-Low)

Here the Idea is to design a basic 5 EMA(High-Low) system which could produce

Buy/Sell Signals whenever the candle crosses the 5 EMA(High/Low) lines

i.e A Buy Signal should produced when it crosses and closes above 5 EMA(High) line

and a Sell Signal should produced when it crosses and closes below 5 EMA(low) line

Buy =  Cross(Close,EMA(High,5));
Sell = Cross(EMA(Low,5),Close);

Amibroker's AFL code had been designed to implement this system with Green Arrows in

the charts indicating Buy Signal and the Red downward arrows indicating sell signal

PlotShapes(IIf(Sell==1, shapeDownArrow, shapeNone), colorRed, 0,High, Offset=-20);
PlotShapes(IIf(Buy==1, shapeUpArrow , shapeNone), colorGreen, 0,Low, Offset=-20);

Both the weekly and Daily charts are shown with buy/sell signals. Just like any other trend following

system 5 EMA(High-Low) also works bad when the trend is side ways and produce more mixed signals

And where there is a strong trend the signals are good and could generate good potential returns.

The Complete AFL code for 5 EMA(High-Low) Buy/Sell Trading system

_SECTION_BEGIN("5 EMA High-Low");
SetChartOptions(0,chartShowArrows|chartShowDates);
_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%) {{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 ) ) ));
Plot( Close, "Close", ParamColor("Color", colorBlack ), styleNoTitle | ParamStyle("Style") | GetPriceStyle() );
Buy = Cross(Close,EMA( High , 5 ));
Sell = Cross(EMA( Low , 5 ),Close);
PlotShapes(IIf(Sell==1, shapeDownArrow, shapeNone), colorRed, 0,High, Offset=-20);
PlotShapes(IIf(Buy==1, shapeUpArrow , shapeNone), colorGreen, 0,Low, Offset=-20);
Plot( EMA( Low,5), "5 EMA LOW",ParamColor("Color", colorBlue ),styleNoRescale);
Plot( EMA( High,5), "5 EMA High",ParamColor("Color", colorBlue ),styleNoRescale);
_SECTION_END();