缺少工作的学生返回清单

Question

我有一个电子表格，我在课堂上用作成绩册。我想要一张列出每项作业的表格，以及尚未完成作业的人员。

我的成绩电子表格位于标题为“成绩”的工作表上 缺失的作业列表将“缺失”

“成绩”的格式如下：

结果应该是我进入“缺失”表

Column A - a list of students missing HW 1 which would be Joe, Amy, Lisa, Monty, Pierre
Column B - A list of students missing HW 2 which would be Joe, Bob, Kare, lisa, Monty, and Pierre
Column C - A list of students missing HW 3 which would be Bob, Amy, and Pierre. 

帮帮忙！

Answer 1

使用此公式：

=IFERROR(INDEX(grades!$A:$A,AGGREGATE(15,6,ROW(grades!$A$2:$A$9)/(grades!B$2:B$9=""),ROW(1:1))),"")

向下复制，直到你得到空白。