Lionel Henry

I work in the r-lib and tidyverse teams at RStudio. I'm interested in developing low-level tools that bring out the expressivity of the R language.

  • Interactivity and Programming in the Tidyverse - Lionel Henry18:11

    Interactivity and Programming in the Tidyverse - Lionel Henry

    In tidyverse grammars such as dplyr you can refer to the columns in your data frames as if they were objects in the workspace. This syntax is optimised for interactivity and is a great fit for data...

    Watch Video
  • Working with names and expressions in your tidy eval code - Lionel Henry16:10

    Working with names and expressions in your tidy eval code - Lionel Henry

    In practice there are two main flavors of tidy eval functions: functions that select columns, such as `dplyr::select()`, and functions that operate on columns, such as `dplyr::mutate()`.

    Watch Video
  • Tidy evaluation is one of the major feature of the latest versions of dplyr and tidyr.55:45

    Tidy evaluation is one of the major feature of the latest versions of dplyr and tidyr.

    Tidy evaluation is one of the major feature of the latest versions of dplyr and tidyr. It enables tidyverse users to write reusable functions and pipeline wrappers.

    Watch Video
  • loading
    Loading More...