25.16 Combining with other tidyverse

We can combine a dash of data manipulation with ggplot2, as seen below.

You’ll notice we have to use a new operator here, :=, because we are generating the variable name based on user-supplied data. Variable names go on the left hand side of =, but R’s syntax doesn’t allow anything to the left of = except for a single literal name.

sorted_bars <- function(df, var) {
  df |> 
    mutate({{ var }} := fct_rev(fct_infreq({{ var }})))  |>
    ggplot(aes(y = {{ var }})) +

diamonds |>