Andy, what are your thoughts on separating test data from cross validation data? If you're doing e.g. a Kaggle competition where they withhold the test data, if you do the same, isn't that redundant?
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Note that Andrew Gelman does not use twitter.
@StatModeling account is just a bot announcing new blog posts. AFAIK he has not done any Kaggle competitions. - 2 more replies
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