### How to change reference category in ordered logistic regression

Posted:

**Thu Jan 25, 2018 1:32 pm**I have a variable with 5 levels.

Level 5 is now automatically taken as the reference category (that is: I get intercept_1 thru intercept_4), but I want level 1 to be the reference category (i.e., have intercept_2 thru intercept_5 estimated).

What code do I have to add to change that?

If this information is available in any documentation, I would be happy if you could point me to that info as well (So far, I have worked through the Zang et al. 2016 paper, the "translation" of chapter 13 about ordered logistic regression into R2mlwin and the LEMMA course material, although that doesn't include Rcode).

Level 5 is now automatically taken as the reference category (that is: I get intercept_1 thru intercept_4), but I want level 1 to be the reference category (i.e., have intercept_2 thru intercept_5 estimated).

What code do I have to add to change that?

If this information is available in any documentation, I would be happy if you could point me to that info as well (So far, I have worked through the Zang et al. 2016 paper, the "translation" of chapter 13 about ordered logistic regression into R2mlwin and the LEMMA course material, although that doesn't include Rcode).