But there's no need to tailor the tutorial to that ... a tutorial on using R to plot things of interest is fine. The main hurdles on learning a language-based approach rather than something like a spreadsheet is getting the basic Gestalt of the language and knowing how to do something from beginning to end ... once that foundation is in place, the balance can be picked up incrementally.

So something where a statistical language approach has substantial advantages ... maybe a tutorial on plotting EU-wide and Eurozone time series data based on data on individual countries.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.