How to plot bar graph in Python Using CSV file

In this article, we will be discussing how to plot a bar graph in Python. We are using the Matplotlib library for this.

Matplotlib is a visualization library in Python. You can install this library using the command,

pip install matplotlib

Below is given the code for plotting a Bar chart using a csv file.

import pandas as pd 
from matplotlib import pyplot as plt 

df = pd.read_csv("Students.csv")
#print(df)

students_groupedby_age = df.groupby('Name')[['Age']].sum()

print(students_groupedby_age.sort_values(by = ['Age']))

fig, ax = plt.subplots()

ax.bar(students_groupedby_age.index, students_groupedby_age['Age'])

plt.title('Students vs Age Bar chart')
plt.xlabel('Students')
plt.ylabel('Age')

plt.show()

Output: