Change Reference/Baseline in GLM

asav_yu

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.

Telcontar120

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.