You are the walrus
Getting a column name like `median(perc_electric_access, na.rm = TRUE)` in the previous lesson can be pretty difficult to work with as a programmer. In this exercise, you'll use the walrus operator (:=) and other rlang magic with dplyr to specify the name of that column instead.
Diese Übung ist Teil des Kurses
Programming with dplyr
Interaktive Übung
Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.
# Finish the function definition
grouped_median_for_column <- function(.data, group_col, col_to_median) {
name_of_col_to_median <- ___(enquo(col_to_median))
new_col_name <- paste0("median_of_", name_of_col_to_median)
.data %>%
group_by( ___ ) %>%
summarize(___new_col_name ___ median( ___ ,
na.rm = TRUE))
}