ggplot(data = iris,
       mapping = aes(x = Sepal.Width, y = Sepal.Length, color = Species)) +
  geom_point() +
  labs(title = "Measurements for Different Species of Iris",
        subtitle = "Virginica has the longest sepals",
        x = "Sepal.Width", y = "Sepal.Length", caption = "Fisher (1936)")

x <- 1234567890

The variable x has a value of 1,234,567,890