[R-sig-ME] clmm2() thresholds - forcing symmetry around zero

Kristin Precoda kristin.precoda at mq.edu.au
Wed Dec 7 04:08:55 CET 2016


I'm using clmm2() to fit a model with three possible response categories (win, tie, lose).  For the particular problem, the thresholds need to be symmetric around zero, so win|tie = -1 * tie|lose.  Is there a way either to force the thresholds to be symmetric around zero, or to just set the thresholds (for example, to -1 and +1) and not optimize them?

Thanks very much,


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