dxja:=a((h+l+o+2*c))/5;ma1:=ema(dxja,20);MAt:=ref(MA1,1)+(CLOSE-ref(MA1,1))/20;ub:mat+mat*0.04,pointdot,linethick3;Lb:MAt-mat*0.04,pointdot,linethick3;:=mat,pointdot,linethick1;F:=(H+L+C)/3;MA5:=MA(FAC,5);MID:=MA(FAC,20),linethick1,colorwhite;UPPER1:MID + 2*STD(CLOSE,20);LOWER1: MID - 2*STD(CLOSE,20);