Program 9

9.Create multiple histograms using ggplot2:: facet_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 necessary libraries

library(ggplot2)

Step2: Load built_in Dataset

data <- iris
head(data)

  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:Create histogram of Sepal.Length grouped by Species using facet_wrap

ggplot(data = iris, aes(x = Sepal.Length)) +
  geom_histogram(binwidth = 0.3, fill = "skyblue", color = "black") +
  facet_wrap(~ Species) +
  labs(
    title = "Distribution of Sepal Length by Species",
    x = "Sepal Length (cm)",
    y = "Frequency"
  ) +
 theme_minimal()