One of the first posts on my blog was about Pivot tables. I’d created a library to pivot tables in my PHP scripts. The library is not very beautiful (it throws a lot of warnings), but it works. These days I’m playing with Python Data Analysis and I’m using Pandas. The purpose of this post is something that I like a lot: learn by doing. So I want to do the same operations that I did eight years ago in the post but now with Pandas. Let’s start.
I’ll start with the same data source that I used almost ten years ago. One simple set of records, with clicks and number of users