prog 9

Author

Reshma

Program 9

Create multiple histogram using ggplot2::facet_wrap() to visualize how a varible(e.g, Sepal.length) is distributed across different groups in a built in R dataset

Step 1:Load the required libraries

library(ggplot2)
library(dplyr)


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Step 2 :Load 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 hostogram using face wrap

ggplot(iris, aes(x = Sepal.Length)) +
  geom_histogram(binwidth = 0.3, color = "black", fill = "skyblue", alpha = 0.7) +
  facet_wrap(~ Species) +
  labs(title = "Distribution of Sepal Length by Species",
       x = "Sepal Length",
       y = "Frequency") +
  theme_minimal()