Random Effects
Describe how to incorporate random effects in gamlss2
References
Rigby, R. A., and D. M. Stasinopoulos. 2005. “Generalized Additive Models for Location, Scale and Shape.” Journal of the Royal Statistical Society Series C (Applied Statistics) 54 (3): 507–54. https://doi.org/10.1111/j.1467-9876.2005.00510.x.