हीटमैप के विकल्प

# The heat map we want to replace
# Don't remove, it's here to help you!
ggplot(barley, aes(x = year, y = variety, fill = yield)) +
  geom_tile() +
  facet_wrap( ~ site, ncol = 1) +
  scale_fill_gradientn(colors = brewer.pal(9, "Reds"))

# Using barley, plot yield vs. year, colored and grouped by variety
___ +
  # Add a line layer
  ___ +
  # Facet, wrapping by site, with 1 row
  facet_wrap( ~ site, nrow = 1)