R dplyr - summarise() with Examples
The summarise() function from dplyr condenses data frames into summary statistics. At its core, it takes a data frame and returns a smaller one containing computed aggregate values.
Summarise
R dplyr - group_by() and summarise()
The group_by() function transforms a regular data frame into a grouped tibble, which subsequent operations treat as separate partitions. This grouping is metadata—the physical data structure…