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

[Kristin Precoda]

Hi,

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,

Kristin

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