Function writing passing column reference to group_by

Question

I\'m very new to R. Trying to define a function that groups a data set (group_by) and then creates summary statistics based on the groupings (dplyr, summarise_each).

Wi

Answer 1

This is the usual way you'd do this:

foo <- function(data,column){
  data %>%
    group_by_(.dots = column) %>%
    summarise_each(funs(mean))
}

foo(mtcars,"cyl")
foo(mtcars,"gear")