Can you use a mixed effects model if your explanatory variable is count data?


New Member
I'm trying to look at the effect 'density' (count data) has on 'colour' (continuous data), and would like to include 'transect' (categorical) as a random effect.

In all the explanations and examples I've found the explanatory variable is categorical - is it simply not acceptable to run a mixed effects model with a continuous/count explanatory variable?

If it is possible which particular mixed model method should I use?

Many thanks in advance.