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Fig. 5 | BMC Bioinformatics

Fig. 5

From: binomialRF: interpretable combinatoric efficiency of random forests to identify biomarker interactions

Fig. 5

Decision tree and node variables. In the binary split decision tree, X1 is the optimal splitting feature at the root of the tree, and \( {\left\{{\boldsymbol{X}}_{\boldsymbol{j}}\right\}}_{\boldsymbol{j}=\mathbf{1}}^{\mathbf{3}}=\left\{{\boldsymbol{X}}_{\mathbf{1}},{\boldsymbol{X}}_{\mathbf{2}},{\boldsymbol{X}}_{\mathbf{3}}\right\} \) is the optimal splitting sequence that indicates a potential X1X2X3 3-way interaction, where the symbol “ ” denotes interactions

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