A percentogram is a histogram in which each bin has the same number of observations and is drawn to have an equal area.
You can install the development version of ggpercentogram like so:
remotes::install_github("eliocamp/ggpercentogram")
library(ggplot2)
library(ggpercentogram)
ggplot(diamonds, aes(carat)) +
geom_percentogram()
#> `stat_quantile_bin()` using `bins = 30`. Pick better value with `binwidth`.