confusion matrix plot is unable to show values within plot

Question

I'm trying to plot confusion matrix, but the plot seems unable to show values at the center.

Code : 
plt.figure(figsize=(4,2))
    sns.heatmap(cm, annot=True, annot_kws={"size":20}, 
            cmap='Blues', square=True, fmt='.2f')
    plt.ylabel('True label')
    plt.xlabel('Predicted label')
    plt.title('Confusion matrix for:\n{}'.format(model.__class__.__name__));

Output :

How to have the values 0.45, 0.94, 0.06 and 0.55 to be at the center of square box for better readability ?

Answer 1

The figure size appears to be too small - 4x2. Also, you are making square=True, the size is not right. As I dont have the same model, I tried it with another model and this is the code and output

plt.figure(figsize=(4,4))
sns.heatmap((metrics.confusion_matrix(y_test, svmGridtest_predict)),annot=True, 
            annot_kws={"size":20}, fmt='.2f', square=True, cmap='Blues')
plt.xlabel('Predicted')
plt.ylabel('Actuals',rotation=0)
plt.title('Confusion matrix for:\n{}'.format('SVM'))

OUTPUT figure here...