Generate a bar chart using Matplotlib in Python

import modules

import pandas as pd
import numpy as np
%matplotlib inline
import matplotlib.pyplot as plt

create dummy dataframe

raw_data = {'name': ['Willard Morris', 'Al Jennings', 'Omar Mullins', 'Spencer McDaniel'],
        'age': [20, 19, 22, 21],
        'favorite_color': ['blue', 'blue', 'yellow', "green"],
        'grade': [88, 92, 95, 70]}
df = pd.DataFrame(raw_data, index = ['Willard Morris', 'Al Jennings', 'Omar Mullins', 'Spencer McDaniel'])
df

	age	favorite_color	grade	name
Willard Morris	20	blue	88	Willard Morris
Al Jennings	19	blue	92	Al Jennings
Omar Mullins	22	yellow	95	Omar Mullins
Spencer McDaniel	21	green	70	Spencer McDaniel

generate a bar plot using matplotlib

#filter the dataframe on student grades, so we can plot that variable
df = df[['grade']]
#set up the plot
my_plot = df.plot(kind='bar',title="Student grades",figsize=(9, 7))
my_plot.set_ylabel('Grade')