[R] tibble or data.frame?

[nealrichardson]

The language is a bit loose in a few places. I'd suggest at least noting that tibble is not required, but that the data frames returned by arrow include the tibble class attributes. So if you use tibble, they'll print and otherwise behave like tibbles. Otherwise, they're just data.frames and that's fine.

You may also want to consider have (at least) your first examples use data.frame(...) to make clear that tibble is not required. (This is a cookbook, and (food) recipes often allow for substitutions or tell you ways you can do variations on it, right?)