Fig. 1From: Diagnostic signature for heart failure with preserved ejection fraction (HFpEF): a machine learning approach using multi-modality electronic health record dataFeature selection analysis. Features were incrementally utilized for training the models to ensure a performance within ± 2 units of the AUROC and f1-macro metrics in fivefold cross-validation setup. Blue: f1-macro, Red: AUROCBack to article page