A quick look at dplyr’s new across() function

The video tutorial introduces the new 'across' function in Dplyr 1.0, demonstrating its use for applying functions across multiple columns in a data frame. The instructor sets up the environment, loads necessary packages, and prepares a COVID-19 dataset for analysis. The tutorial covers basic and advanced usage of the 'across' function, including summarizing data and applying multiple functions like median and maximum. The video emphasizes the function's ability to simplify code by avoiding the need to name each column individually.

What does the 'cross' function allow you to do with data frames?

Explain how to create a summarized data frame with both median and maximum values using the 'cross' function.