I tried to find a solution online, but I haven't found any answer yet. I am trying to do a cohort/ customer retention analysis. The picture shows my take on this. What I want:
I want to see whether customers that were active 4 weeks ago came back to the website in the subsequent weeks (i.e. relative time filter).
I have a classical useId and sessionId that I could work with.
Anyone has an idea how one could do this? Any help is much appreciated!