  Nonlinear mixed effects modeling is a powerful tool when analyzing data from
several entities in an experiment. In this paper, we present NLMEModeling, a
package for mixed effects modeling in Wolfram Mathematica. NLMEModeling
supports mixed effects modeling of dynamical systems where the underlying
dynamics are described by either ordinary or stochastic differential equations
combined with a flexible observation error model. Moreover, NLMEModeling is a
user-friendly package with functionality for model validation, visual
predictive checks and simulation capabilities. The package is freely available
and provides a flexible add-on to Wolfram Mathematica.
