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Jan 5, 2017 at 22:18 comment added dwhdai @FrankHarrell good catch!
Jan 5, 2017 at 22:06 comment added Frank Harrell Minor correction: the bootstrap and cross-validation are internal validation methods. But they can be done rigorously and often outperform external validation.
Jan 5, 2017 at 21:49 review Late answers
Jan 5, 2017 at 22:11
Jan 5, 2017 at 21:32 history answered dwhdai CC BY-SA 3.0