请老师将主力10天仓位下破入底线做个预警选股公式，谢谢

滴滴点点

入底:10, COLOR00FF00 ;
主力持仓:=EMA(100*(CLOSE-LLV(LOW,25))/(HHV(HIGH,25)-LLV(LOW,25)),3),COLORFF00FF,LINETHICK3;
仓位10天均线:MA(主力持仓,10),COLORMAGENTA;

陪练专家

入底:=10, COLOR00FF00 ;
主力持仓:=EMA(100*(CLOSE-LLV(LOW,25))/(HHV(HIGH,25)-LLV(LOW,25)),3),COLORFF00FF,LINETHICK3;
仓位10天均线:=MA(主力持仓,10),COLORMAGENTA;
aa:cross(入底,仓位10天均线);