title: Making a confusion matrix with numbers in each box
body: <p>I tried to plot a confusion matrix with the below code, but i could not show the numbers in each box!</p>
  
  <p>This is what i have done:</p>
  
  <pre><code>plt.matshow(cm, cmap= 'binary') #cubehelix, viridis, jet, PuOr, rainbow, RdBu
  plt.title('Confusion matrix')
  plt.colorbar()
  plt.ylabel('True label')
  plt.xlabel('Predicted label')
  plt.show()
  </code></pre>