Matplotlib in Python


Matplot is a very powerful python library to visualize the datasets. It is built upon the SciPy and the NumPy library.

Further, it would be better to give examples that make you understand the matplot library.

 

Example-1

import matplotlib.pyplot as plt

x=[200,300,400,500,600,700]

y=[200,300,400,500,600,700]

plt.plot(x,y)

plt.show()

Execution on ubuntu

 

The output of the code will be.

 

 

matplotlib

You can observe that there are not any x-axis and y-axis labels. Further, to add these labels you have to use xlabel and ylabel functions. Then the program will be

 

Example-2

import matplotlib.pyplot as plt

x=[200,300,400,500,600,700]

y=[200,300,400,500,600,700]

plt.xlabel(“X Variable”)

plt.ylabel(“Y Variable”)

plt.plot(x,y)

Related Posts  Python Tutorial

plt.show()

 

Command line execution of the program on Ubuntu

Matplotlib

 

 

The output of the program would be

Matplotlib
xylabels

Pie Chart in Matplotlib

 

import matplotlib.pyplot as plt
labels= ‘Hinduism’, ‘Islam’, ‘Christianity’, ‘Sikhism’
data = [79.80, 14.23,2.30,1.72] c= [‘red’, ‘green’, ‘yellow’, ‘white’] e=(0.0, 0.0, 0.0, 0.0)
plt.pie(data, explode=e, labels=labels, autopct=’%0.0f%%’, shadow=True, startangle=90)
plt.show()

 

Output of the program would be

Pie Chart

 

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