描述主力持仓行为变化的指标。
 无未来函数，可放心使用。

VAR1:=REF((LOW+OPEN+CLOSE+HIGH)/4,1);
 VAR2:=SMA(ABS(LOW-VAR1),13,1)/SMA(MAX(LOW-VAR1,0),10,1);
 VAR3:=EMA(VAR2,10);
 VAR4:=LLV(LOW,33);
 VAR5:=EMA(IF(LOW<=VAR4,VAR3,0),3);
 z:0,colorblack;
主力进场:IF(VAR5>REF(VAR5,1),VAR5,0),colorred,NODRAW;
洗盘:IF(VAR5<REF(VAR5,1),VAR5,0),colorgreen,NODRAW;
 STICKLINE(VAR5<REF(VAR5,1),0,VAR5,3,0),colorgreen;
 STICKLINE(VAR5>REF(VAR5,1),0,VAR5,3,0 ),COLOR000055;
 STICKLINE(VAR5>REF(VAR5,1),0,VAR5,2.6,0 ),COLOR000077;
 STICKLINE(VAR5>REF(VAR5,1),0,VAR5,2.1,0 ),COLOR000099;
 STICKLINE(VAR5>REF(VAR5,1),0,VAR5,1.5,0 ),COLOR0000BB;
 STICKLINE(VAR5>REF(VAR5,1),0,VAR5,0.9,0 ),COLOR0000DD;
 STICKLINE(VAR5>REF(VAR5,1),0,VAR5,0.3,0 ),COLOR0000FF;
 STICKLINE(VAR5<REF(VAR5,1),0,VAR5,3,0),COLOR005500;
 STICKLINE(VAR5<REF(VAR5,1),0,VAR5,2.6,0),COLOR007700;
 STICKLINE(VAR5<REF(VAR5,1),0,VAR5,2.1,0),COLOR009900;
 STICKLINE(VAR5<REF(VAR5,1),0,VAR5,1.5,0),COLOR00BB00;
 STICKLINE(VAR5<REF(VAR5,1),0,VAR5,0.9,0),COLOR00DD00;
 STICKLINE(VAR5<REF(VAR5,1),0,VAR5,0.3,0),COLOR00FF00;
 VAR21:=SMA(ABS(HIGH-VAR1),13,1)/SMA(MIN(HIGH-VAR1,0),10,1);
 VAR31:=EMA(VAR21,10);
 VAR41:=HHV(HIGH,33);
 VAR51:=EMA(IF(HIGH>=VAR41,VAR31,0),3);
主力拉高:IF(VAR51<REF(VAR51,1),VAR51,0),coloryellow,NODRAW;
 STICKLINE(VAR51<REF(VAR51,1),0,VAR51,3,0),coloryellow;
出货:IF(VAR51>REF(VAR51,1),VAR51,0),colorcyan,NODRAW;
 STICKLINE(VAR51>REF(VAR51,1),0,VAR51,3,0 ),colorcyan;