r - Two Variable Histogram - not showing layers

Question

I am trying to create a two-variable histogram but when I run my code, the graph comes out with just one colour.

Here is my code:

library(car)
geography <- recode(simd$urban,"0='rural';1='urban'",as.factor = TRUE)
class(geogrphy)

ggplot(data = simd)+
  geom_histogram(mapping=aes(illnes`, fill='geography'),
                 binwidth = 20)

Any idea what I am doing wrong?

question from:https://stackoverflow.com/questions/65849731/two-variable-histogram-not-showing-layers

Answer 1

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