dplyr: episode 9, the rise of the vctrs

RLadies-Lyon would like to welcome Romain François, creator of dplyr to Lyon! He will be introducing new functions in the soon to be released dplyr 0.9 R package.

The event will start promptly at 7pm and will be followed with a round table of informal questions until 9pm.

!!! AN EVENT NOT TO BE MISSED !!!

Find out more about about open-source software and come and ask all of your questions !! https://purrple.cat/blog/2018/03/22/i-m-not-looking-for-a-job

The talk will be in english. Questions can be asked in french also.

Summary
The future dplyr 0.9.0 has been in development for a few months. It brings
exciting new developments largely thanks to the vision and implementation
of underlying packages rlang and vctrs. dplyr is more robust and stable
because of that.

One of the most important changes is that expressions in mutate() and
summarise() can now return tibbles that are either packed or unpacked.

We'll go through the new proposed functions pick() and across() and how they fit together with other functions from dplyr, i.e. mutate() and summarise(), and beyond, e.g. pack() and unpack() from the newest version of tidyr.