Create a sequence column in Excel

问题

I have a column with names and i wanted to add a column that count the sequence of each row based on the name. So if a name appears multiple time (i.e 4), the first row of that name will have sequence 1 and the 2nd row sequence 2, etc...

Name        Sequence    
Andrew       1    
Andrew       2    
Andrew       3    
Paul         1    
Amy          1    
Amy          2    
Jean         1

回答1:

Use COUNTIF with a variable range:

=COUNTIF($A$1:A2,A2)

来源：https://stackoverflow.com/questions/52171832/create-a-sequence-column-in-excel