Program-9

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

Step 1: Load the required libraries

library(ggplot2)

Step 2: load the 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 Histogram

ggplot(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()