dummy code

TracywangmTracywangm Member Posts: 1 Newbie
Dear Data Mining and Rapid Miner Experts,
I am the first learner. Now I want to create 3 new coding variables to dummy code with 4 groups about the seasons and define 2 reference categories(spring, other countries). Could you please tell me how to do it?
Thank you!


  • Options
    Telcontar120Telcontar120 Moderator, RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,635 Unicorn
    Sure, the "Nominal to Numerical" operator allows you to recode nominals as numerical, and the parameter options allow you to select either dummy coding (one-hot encoding) or effect coding (with a defined reference category that will be omitted).  See the tutorial for that operator for more information.

    Brian T.
    Lindon Ventures 
    Data Science Consulting from Certified RapidMiner Experts
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