分时跟庄指标公式做预警或者选股公式

编写要求：

解答：

?网友求助：

恳请老师帮忙这个分时跟庄指标公式做预警或者选股公式
A1:=(DVOL/C)/2,NODRAW;
A2:=SUM(IF(A1>100 AND CLOSE>REF(CLOSE,1),A1,0),0);
A3:=SUM(IF(A1>100 AND CLOSE A4:=SUM(IF(A1<100 AND CLOSE>REF(CLOSE,1),A1,0),0);
A5:=SUM(IF(A1<100 AND CLOSE A6:=A2+A3+A4+A5;
机买:(A2/A6)*100,LINETHICK2,COLORRED;
机卖:(A3/A6)*100,LINETHICK2,COLORGREEN;
散买:(A4/A6)*100,LINETHICK0;
散卖:(A5/A6)*100,LINETHICK0;
主力差:机买-机卖,LINETHICK2,NODRAW;
散户差:散买-散卖,LINETHICK0,NODRAW;
DRAWTEXT(主力差>0 AND REF(主力差,1)<=0,C*0.85,'●机构'),COLORRED;
DRAWTEXT(主力差<0 AND REF(主力差,1)>=0,-C*0.85,'○机构'),COLORWHITE;
DRAWTEXT(散户差>0 AND REF(散户差,1)<=0,C*0.15,'▲散户'),COLORCYAN;
DRAWTEXT(散户差<0 AND REF(散户差,1)>=0,-C*0.15,'△散户'),COLORWHITE;

●机构买入作为预警点