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. Author manuscript; available in PMC: 2024 Jul 10.
Published in final edited form as: Stat Methods Med Res. 2024 Mar 6;33(4):647–668. doi: 10.1177/09622802241233768

Figure 2.

Figure 2.

The plot demonstrates the use of the Box-Cox transformation in the context of ROC analysis. A single biomarker with 3 groups uses a single value of λ to transform all 3 groups to normality. When using this approach to combine p biomarkers, we obtain p separate λ’s to transform each biomarker to normality.