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. 2018 Sep 14;13(9):e0203865. doi: 10.1371/journal.pone.0203865

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© 2018 Gleason et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 4 — (a) AUC_best increases monotonically with increasing number of features. (b) AUC_adj − k curves show that as the number of features included in the model increased, the AUC_adj increased to reach a maximum value, plateaued in some cases, then decreased in models with a high number of features. (c) The optimism, O, increased linearly with an increasing number of features.