https://edit-reportcard.wmflabs.org is a very rough beginning in the analysis of data related to the use of VisualEditor in the main wikipedias. The VisualEditor team needs help improving this space, so it provides metrics that help the team understand problematic areas, trends, impact of new features...

At this point there is basically no documentation. T84926 and T84927 are very basic starts. Can you dig in these metrics and the raw data associated, and understand what is being shown there?

Also, these graphs are created using Limn. Have a look at the documentation in order to understand how it works. Bonus point if you install it locally and play with it a bit.

If you have any questions about Limn you can ask in the analytics mailing list. In any case, considering your background it is a good idea to subscribe to this list.