Group of Reference coeff in EM Logistic Regression, please help! Thank you

[Kanyange]

Hi All,

I have built a Logistic Regression model in EM and I had a quick question regarding the reference group.

The reference group variable isn’t set to a coefficient of zero in EM, it seems to be the negative sum of the other coefficients in the variable.

Could you please let me know why? I would expect the reference group to have a coefficient = 0.

Your help would be much appreciated.

Thank You

[WendyCzika]

If you are using the Regression node, you can change the Input Coding property (under Model Options) to GLM to get the coding that you would like for class inputs.

[Kanyange]

Thank you Wendy!