ggplot 不显示条形图中的颜色

Question

My bar graph below doesn't show the colors in the bars.

ggplot(top5_energyProducersMod, aes(year, ggwt_hours), fill = year) +
  geom_bar(stat = "identity", position = "dodge") +
  facet_wrap(~country_name)

I'm using the R studio desktop version

Answer 1

The fill color goes with the aesthetics:

ggplot(top5_energyProducersMod, aes(year, ggwt_hours,fill = year)) +
  geom_bar(stat = "identity", position = "dodge") +
  facet_wrap(~country_name)