it sounds pretty easy but I don’t know how to do it in Knime without using a Python node. I want to add a column which is a running number from 1 to infinity with respect to a group. For example when I have the table:
Group
23
23
34
56
23
34
23
56
It should add the following column
Group Index
23 1
23 2
34 1
56 1
23 3
34 2
23 4
56 2