PYTHON

bar plot matplotlib

import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_axes([0,0,1,1])
langs = ['C', 'C++', 'Java', 'Python', 'PHP']
students = [23,17,35,29,12]
ax.bar(langs,students)
plt.show()

how to plotting bar on matplotlib

import matplotlib.pyplot as plt 

data = [5., 25., 50., 20.]
plt.bar(range(len(data)),data)
plt.show()

// to set the thickness of a bar, we can set 'width'
// plt.bar(range(len(data)), data, width = 1.)

matplotlib bar chart

import numpy as np
import matplotlib.pyplot as plt
 
  
# creating the dataset
data = {'C':20, 'C++':15, 'Java':30,
        'Python':35}
courses = list(data.keys())
values = list(data.values())
  
fig = plt.figure(figsize = (10, 5))
 
# creating the bar plot
# the format of the bar() method is: 
# plt.bar(x_value, y_value, color, width_of_bars_inches)
plt.bar(courses, values, color ='maroon',
        width = 0.4)
# x-axis label
plt.xlabel("Courses offered")
# y-axis label
plt.ylabel("No. of students enrolled")
# Title of the figure
plt.title("Students enrolled in different courses")
plt.show()