AA:=(O+H+L+C)/4;
BB:=MA(AA,3);
CC:=SUM(IF(AA>REF(AA,1),AA*VOL,0),4)/SUM(IF(AA<REF(AA,1),AA*VOL,0),4);
DD:=REF(100-(100/(1+CC)),1);
A1:=HHV(AA,15);
A2:=LLV(AA,15);
A3:=A1-A2;
A4:=EMA((AA-A2)/A3,2)*100;