[R-sig-ME] lme4 merMod model object

[Nathan Pace]

Hi mixed model experts,

I have a GLMM (binomial) model estimated in lme4 using glmer.

There are many linear coefficients such as coef1, coef2, coef3, coef4, …

I have used glht from multcomp to test coefficient contrasts such as coef1 – coef2 = 0.

Now I desire to test sets of linear contrasts in the model jointly such as coef1 – coef2 = 0 & coef3 – coef4 = 0.

By my reading, this should be possible in the linearHypothesis function of the car package.

If someone has already used sets of contrast vectors for that purpose, I would appreciate learning of the format.

Thanks,

vd
Nathan Pace
University of Utah


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