Program-11

Write a R program to generate a basic box plot, enhance with notches and outliers ,and grouped by a categorical variable,using ggplot2

Step 1: Load the library

library(ggplot2)

Step 2: Load the necessary Dataset

data(iris)
head(iris)

  Sepal.Length Sepal.Width Petal.Length Petal.Width Species
1          5.1         3.5          1.4         0.2  setosa
2          4.9         3.0          1.4         0.2  setosa
3          4.7         3.2          1.3         0.2  setosa
4          4.6         3.1          1.5         0.2  setosa
5          5.0         3.6          1.4         0.2  setosa
6          5.4         3.9          1.7         0.4  setosa

Step 3: Create and display basic box plot

ggplot(iris, aes(x = Species, y=Sepal.Length)) +
  geom_boxplot(notch = TRUE, outlier.colour = "red", outlier.shape = 16, outlier.size = 2, fill="skyblue") +
  labs(title = "Distribution of Sepal Length ", x = "Species", y = "Sepal Length") +
  theme_minimal()