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Visualizing relational joins

I want to discuss a nice series of figures used to teach relational join semantics in R for Data Science by Garrett Grolemund and Hadley Wickham, O’Reilly 2016. Below is an example from their book illustrating an inner join: Please read on for my discussion of this diagram and teaching […]

A non-technical post and ask

This article is not on the usual technical topics of this blog, so you have my apology up front for that. And instead of trying to help you, we are asking for your help. Nina Zumel has written a lot of important and helpful articles for this blog. I would […]