[hadley]

Have you seen https://dtplyr.tidyverse.org? It gives you the syntax of dtplyr and (almost all of) the speed of data.table.

[dm319]

Oh, I feel a bit silly now! I'd seen a couple of attempts to combine the two, but didn't realise this one was official. It looks great. I have an analysis coming up that borders between dplyr and data.table in terms of size, so will check it out then!

[laughy]

There is also the tidytable package. But dtplyr works really well. Have used it in a couple of shiny apps that wrangle some heavy input files.