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A demonstration of vtreat data preparation

This article is a demonstration the use of the R vtreat variable preparation package followed by caret controlled training. In previous writings we have gone to great lengths to document, explain and motivate vtreat. That necessarily gets long and unnecessarily feels complicated. In this example we are going to show […]

Fluid use of data

Nina Zumel and I recently wrote a few article and series on best practices in testing models and data: Random Test/Train Split is not Always Enough How Do You Know if Your Data Has Signal? How do you know if your model is going to work? A Simpler Explanation of […]