Forked from shaypal5/confusion_matrix_pretty_print.py
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May 13, 2024 13:03
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Pretty print a confusion matrix with seaborn
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def print_confusion_matrix(confusion_matrix, class_names, figsize = (10,7), fontsize=14): | |
df_cm = pd.DataFrame(confusion_matrix, index=class_names, columns=class_names) | |
fig = plt.figure(figsize=figsize) | |
try: | |
heatmap = sns.heatmap(df_cm, annot=True, fmt="d") | |
except ValueError: | |
raise ValueError("Confusion matrix values must be integers.") | |
heatmap.yaxis.set_ticklabels(heatmap.yaxis.get_ticklabels(), rotation=0, ha='right', fontsize=fontsize) | |
heatmap.xaxis.set_ticklabels(heatmap.xaxis.get_ticklabels(), rotation=45, ha='right', fontsize=fontsize) | |
plt.ylabel('True label') | |
plt.xlabel('Predicted label') | |
return fig |
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