Fig. 3From: Development and validation of a nomogram for blood transfusion during intracranial aneurysm clamping surgery: a retrospective analysisClassification error for evaluating the discrimination power of various machine learning algorithms. The classification values for intraoperative blood transfusion were 0.2903 of the K-nearest neighbor, 0.2290 of logistic regression, 0.2518 of ranger, and 0.2632 of the extremely gradient boosting model, respectivelyBack to article page