谁能详细告诉我这个公式是具体如何算的最好分段解释=IF(COUNT(R7:R30)>30,ROUND((SUM(R7:R30)-MAX(R7:R30)-MIN(R7:R30)-LARGE(R7:R30,2)-LARGE(R7:R30,3)-LARGE(R7:R30,4)-SMALL(R7:R30,2)-SMALL(R7:R30,3))/(COUNT(R7:R30)-7),2),IF(AND(COUN
谁能详细告诉我这个公式是具体如何算的最好分段解释
=IF(COUNT(R7:R30)>30,ROUND((SUM(R7:R30)-MAX(R7:R30)-MIN(R7:R30)-LARGE(R7:R30,2)-LARGE(R7:R30,3)-LARGE(R7:R30,4)-SMALL(R7:R30,2)-SMALL(R7:R30,3))/(COUNT(R7:R30)-7),2),IF(AND(COUNT(R7:R30)>20,COUNT(R7:R30)10,COUNT(R7:R30)5,COUNT(R7:R30)

