9.6 Count number of repetitions of row-based data - by whole row

 

Here below is a personnel data table:

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To count the number of duplicate whole-row data, calculate in the cell E1:

A
1 =E(‘A1:D7’).derive(:Num)
2 =A1.group(ID,Name,Gender,Birthday).run(a=~.len(),~.run(Num=a))
3 return A1.new(Num)

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