Mechanical Trading system for Amibroker (AFL)

Plot (C,"Price",colorLime,styleBar);
Plot (MA(C,24),"ma 24",colorRed,1);

Plot (MA(C,2),"ma 24",colorYellow,1);
rawrng=HHV(C,50)-LLV(C,50);//calculate the difference betwen highest and lowest clsoe vlaues in the last 50 bars
rngup=(MA(C,24)+rawrng*0.05); // 5% of the rawrange taken as the vicinity band
rngdown=(MA(C,24)-rawrng*0.05); 

k1=MA(C,24);
k2=rngup;
K3=rngdown;

j1= Close > MA( Close, 24 ) AND Open > MA( Close, 24 ) AND Open < rngup ;
j2= Close < MA( Close, 24 ) AND Close > rngdown AND Open < MA( Close, 24) ;

PlotShapes( shapeSmallCircle* j1,colorYellow, 0,H, 10);
PlotShapes( shapeSmallCircle* j2,colorBlue, 0,L, -10);
PlotOHLC(k1,k1,k2,k2,"",colorGrey40, styleCloud);
PlotOHLC(k1,k1,k3,k3,"",colorGrey40, styleCloud);