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Change Reference/Baseline in GLM

asav_yuasav_yu Member Posts: 15 Contributor II
edited May 2019 in Help
I am sure there is a super easy way to do this but I can't find it. How can I change the reference level for a categorical variables for my glm? 

In python it would be something like this: https://stackoverflow.com/questions/22431503/specifying-which-category-to-treat-as-the-base-with-statsmodels

EDIT:
Found the solution thanks. Its a matter of defining comparison groups in nominal to numerical operator.
sgenzermschmitzSGolbert

Answers

  • Telcontar120Telcontar120 Moderator, RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,378   Unicorn
    Correct.  Although you actually don't need the comparison group method at all, the GLM implementation can handle the dummy coding approach, which is a bit more popular.  So either works fine.

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