program 9

PROGRAM 9

Create multiple histogram using ggplot2::face_wrap() to visualize how a variable (e.g sepal.length)is distributed across different groups (e.g species)in a built-in R dataset .

step1:Load the required libraries

library(ggplot2)

step2:load the dataset

#load the iris dataset
data("iris")

#view the first few rows of the dataset
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

step3:customize the plot

ggplot(iris, aes(x = Sepal.Length)) +
  geom_histogram(binwidth = 0.3, fill = "skyblue", color = "black") +
  facet_wrap(~ Species, scales = "free") +  # Split the histograms by Species
  theme_minimal() +  # Minimal theme for better visualization
  labs(title = "Distribution of Sepal Length by Species",
       x = "Sepal Length",
       y = "Frequency")