Coloring a geom_histogram by gradient

Question

I\'m trying to plot a geom_histogram where the bars are colored by a gradient.

This is what I\'m trying to do:

library(ggplot2)
set.seed(1)
df <-          


        

Answer 1

Not sure you can fill by val because each bar of the histogram represents a collection of points.

You can, however, fill by categorical bins using cut. For example:

ggplot(df, aes(val, fill = cut(val, 100))) +
  geom_histogram(show.legend = FALSE)