Problem description & analysis:
In the Excel table below, the 1st column is the category and the 2nd column contains detailed data whose values are true or false.
Task: Find the category whose detail data does not have the true value. The expected result will be Andy and Tim.
Solution:
Use SPL XLL to get this done:
=spl("=?.groups(~1;count(~2)).select(#2==0).(#1)",A1:B6)
As shown in the picture below:
Explanation:
groups() function groups and summarizes data; ~1 represents the 1st child member of the current member; #1 is the 1stcolumn of the table.
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