主力介入,短底（通达信公式 副图 源码 测试图）

{主力介入}
{此公式是短期见底公式，第二根柱线是买点。选股源码}
短底:=IF(((1-(MA(LOW,3))/(MA((HIGH+LOW+(2)*(CLOSE))/(4),20)))*(100)-(89)/(10)>0),((((1-(MA(LOW,3))/(MA((HIGH+LOW+(2)*(CLOSE))/(4),20)))*(100)-(89)/(10))*(3000))*(REF((HIGH+LOW+(2)*(CLOSE))/(4),3)))/(CLOSE),0),STICK,COLOR0000FF;
主力介入:EMA(短底,7)/100,STICK,COLOR0000FF;