matplotlib heatmap matrix code example

Example: matplotlib heatmap

# Program to plot 2-D Heat map
# using matplotlib.pyplot.imshow() method
import numpy as np
import matplotlib.pyplot as plt
  
data = np.random.random(( 12 , 12 ))
plt.imshow( data , cmap = 'autumn' , interpolation = 'nearest' )
  
plt.title( "2-D Heat Map" )
plt.show()