Hi
How should I use IF or IFS function to deal with the situation below. Many thanks!
I would to assign the number "1" for the age group of 1960s, "2" for the 1970s and "3" for the 1980s.
Current data:
<tbody>
Date
Age Group
1/1/1960
31/12/1969
1/1/1970
31/12/1979
1/1/1980...