大小单买卖指标 (源码)

a1:=(VOL/CLOSE)/3;
a2:=SUM((IF(((a1>40) AND (CLOSE>(REF(CLOSE,1)))),a1,0)),0);
a3:=SUM((IF(((a1>40) AND (CLOSE<(REF(CLOSE,1)))),a1,0)),0);
a4:=SUM((IF(((a1<40) AND (CLOSE>(REF(CLOSE,1)))),a1,0)),0);
a5:=SUM((IF(((a1<40) AND (CLOSE<(REF(CLOSE,1)))),a1,0)),0);
大单:(a2)-(a3),linethick2,Colorf00ff0;
小单: (a4)-(a5),linethick2,Colorgreen;