I'm new at datamining, and am wondering about the following problem :
Say I have information about the products a customer buys.
One of the products is milk, and I want to predict milk buyers.
Do you than have to add a variable MilkBuyer with 1 for milk buyers eand 0 for the rest (like the BikeBuyer variable in the AdventureWorks samples) to build a model to predict milk buyers (for instance with a Decision Tree model), or is there a better way?
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