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| import matplotlib.pyplot as plt | |
| class FraudDetection: | |
| def plot_model_performance(self): | |
| # Example: Plot confusion matrix | |
| plt.figure(figsize=(5, 4)) | |
| plt.imshow([[0.9, 0.1], [0.2, 0.8]]) | |
| plt.colorbar() | |
| plt.xlabel("Predicted") | |
| plt.ylabel("Actual") | |
| plt.title("Confusion Matrix") | |
| buf = io.BytesIO() | |
| plt.savefig(buf, format='png') | |
| plt.close() | |
| buf.seek(0) | |
| image = Image.open(buf) | |
| return image |