merk for Amibroker (AFL)

_SECTION_BEGIN("Chart Settings");
SetChartOptions(0,chartShowArrows|chartShowDates);
SetChartBkColor(ParamColor("Outer Panel",colorPaleBlue)); 
SetChartBkGradientFill(ParamColor("Upper Chart",1),ParamColor("Lower Chart",23));
_SECTION_END();
m = Param("Periods", 10, 5, 20, 1 );
n = Param("Average", 4, 3, 10, 1 );
Var2=(High+Low+Close*2)/4;
Var3=EMA(Var2,m);
Var4=StDev(Var2,m);
Var5=(Var2-Var3)*100/IIf(Var4==0,1,Var4);
Var6=EMA(Var5,n);
Var7=EMA(Var6,n);
WW=(EMA(Var7,m)+100)/2-4;
MM=HHV(WW,n); 
Plot(ww, "WW", 8, 1+4);
Plot(mm, "MM", 4, 1+4);
Buy=IIf(ww>Ref(ww,-1) AND Ref(ww,-1)<Ref(ww,-2) AND ww<50,20,0);
Plot(Buy, "BUY", 8,2+4);
Sell=IIf(ww<Ref(ww,-1) AND Ref(ww,-1)>Ref(ww,-2) AND ww>50,20,0);
Plot(Sell, "SELL", 4,2+4);