指标通过分析股价高低区间、获利筹码分布和成本偏离度，识别主力洗盘后的买入机会。当挖坑线从低位拐头向上且成本乖离为负时，表明市场经历打压后出现反弹信号，可考虑介入。
操作策略：挖坑线急速下探后走平时关注，配合成本乖离率由负转正时逐步建仓。
HG1:=HHV(HIGH,12)-LLV(LOW,26);
HG2:=HHV(HIGH,9)-CLOSE;
HG3:=CLOSE-LLV(LOW,9);
HG4:=HG2/HG1*100-70;
HG5:=(CLOSE-LLV(LOW,60))/(HHV(HIGH,60)-LLV(LOW,60))*100;
HG6:=(2*CLOSE+HIGH+LOW)/4;
HG7:=SMA(HG3/HG1*100,3,1);
HG26:=LLV(LOW,34);
HG28:=SMA(HG7,3,1)-SMA(HG4,9,1);
获利盘:WINNER(CLOSE)*100,COLORRED,LINETHICK1;
获利盘20:HHV(获利盘,20),COLORYELLOW,LINETHICK1;
挖坑线:EMA((100+获利盘-获利盘20),3),COLORMAGENTA,LINETHICK2;
成本乖离:(CLOSE/COST(50)-1)*100,COLORGREEN,LINETHICK1;
