Dr. James McCaffrey of Microsoft Research presents a full-code, step-by-step tutorial on a "very tricky" machine learning technique. Data clustering is the process of grouping data items together so ...
A categorical variable is defined as one that can assume only a limited number of values. For example, a person's sex is a categorical variable that can assume one of two values. Variables with levels ...
A “dummy” or “indicator” variable takes on a value of either 0 or 1. The appeal of these particular values is that they are numerical and can be used with routines that only accept numerical data ...
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