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Calibration curve of radiomics nomogram. (A): calibration curve of the train set; (B): calibration curve of the test set. The y-axis shows the actual result. The x-axis represents the predicted probability of mycoplasma pneumonia. The diagonal dotted line represents an ideal model. The solid line indicates the performance of the nomogram. If the solid line is closer to the diagonal dotted line, it means a better prediction.
