These categories are what create the columns and the rows in the table. This is very difficult to answer because it depends on the kind of data you have, its behavior, what your research design and objectives are, what the literature review reveals, etc. There are a couple of goals here, first we want to know the general behavior of the data. I am not trying to explain why I want three columns of data. This tutorial is simply to show you how to do it.
Partial output follows.