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prob_true_isotonic, prob_pred_isotonic = calibration_curve(y_val, prob_pos_val_isotonic, n_bins=n_bins) # Plot calibration curves plt.figure(figsize=(8, 8)) # Plot uncalibrated calibration curve plt.plot(prob_pred_uncalibrated, prob_true_uncalibrated, marker='o', label='Uncalibrated') # Plot