Chapter4 Problem 4

Using the iris dataset in the datasets package (dataset package belongs to Base R and so you don’t need to download the package), replicate the plot below using the following settings:

• Set size = 6 for the size of points
• Set alpha = 0.5
• Use theme_minimal()

(iris is another famous dataset in R. You may google or check the this link to learn more about the dataset)

Answer

ggplot(iris, aes(x = Sepal.Length, y = Sepal.Width, color=Species, shape=Species)) +
  geom_point(size=6, alpha = 0.5) +
  labs(title = "Scatterplot", 
       subtitle = "Sepal.Length Vs Sepal.Width", 
       caption = "source: iris"
  ) + 
  theme_minimal()