Hello,
I have a KEY column in which a certain value gets repeated different times in my dataset. I have created a new column called COUNT which counts how many times that key value appears in the data. I need a third column which will be a kind of INDEX based on the key value, so each KEY will start on 1 and then grow 1 by 1 until the key value changes and starts on 1 again.
It would look like this:
KEY | COUNT | INDEX |
AAA01 | 3 | 1 |
AAA01 | 3 | 2 |
AAA01 | 3 | 3 |
BBB02 | 2 | 1 |
BBB02 | 2 | 2 |
CCC03 | 1 | 1 |
DDD04 | 2 | 1 |
DDD04 | 2 | 2 |
Appreciate any help!
Regards