VAR2:=(2*CLOSE+HIGH+LOW)/4;VAR3:=IF(YEAR>=2099 AND MONTH>2,0,1);VAR4:=LLV(LOW,5); VAR5:=HHV(HIGH,4);:=EMA((VAR2-VAR4)/(VAR5-VAR4)*100,8)*VAR3;:=EMA(0.667*REF(散户,1)+0.333*散户,2)*VAR3;:OSS(散户,庄家) AND 散户<30;